Full Terms & Conditions of access and use can be found at http://www.tandfonline.com/action/journalInformation?journalCode=camh20 Download by: [Pennsylvania State University] Date: 09 May 2017, At: 11:45 Aging & Mental Health ISSN: 1360-7863 (Print) 1364-6915 (Online) Journal homepage: http://www.tandfonline.com/loi/camh20 Gratitude and coping among familial caregivers of persons with dementia Bobo Hi-Po Lau & Cecilia Cheng To cite this article: Bobo Hi-Po Lau & Cecilia Cheng (2017) Gratitude and coping among familial caregivers of persons with dementia, Aging & Mental Health, 21:4, 445-453, DOI: 10.1080/13607863.2015.1114588 To link to this article: http://dx.doi.org/10.1080/13607863.2015.1114588 Published online: 27 Nov 2015. Submit your article to this journal Article views: 214 View related articles View Crossmark data Citing articles: 1 View citing articles Gratitude and coping among familial caregivers of persons with dementia Bobo Hi-Po Laua and Cecilia Chengb a Department of Social Work and Social Administration, University of Hong Kong, Hong Kong; b Department of Psychology, University of Hong Kong, Hong Kong ARTICLE HISTORY Received 13 August 2015 Accepted 27 October 2015 ABSTRACT Objectives: Gratitude is widely perceived as a key factor to psychological well-being by different cultures and religions. The relationship between gratitude and coping in the context of familial dementia caregiving has yet to be investigated. Design: This study is the first to examine the associations among gratitude, coping strategies, psychological resources and psychological distress using a structural equation modelling approach. Results: Findings with 101 Chinese familial caregivers of persons with dementia (mean age D 57.6, range = 40À76; 82% women) showed that gratitude was related to the greater use of emotionfocused coping (positive reframing, acceptance, humour, emotional social support seeking, religious coping) and psychological resources (caregiving competence and social support). Psychological resources and emotion-focused coping in turn explained the association between gratitude and lower levels of psychological distress (caregiving burden and depressive symptoms). Conclusion: The present results indicate the beneficial role of gratitude on coping with caregiving distress and provide empirical foundation for incorporating gratitude in future psychological interventions for caregivers. KEYWORDS Gratitude; caregiving; Alzheimer’s disease; dementia; coping Introduction Gratitude has been proposed as a key factor for subjective well-being by major religions (e.g., Christianity, Buddhism, Muslim) and philosophers in different cultures (Confucius, Marcus Tullius Cicero, Adam Smith; Emmons & Crumpler, 2000; Emmons & Shelton, 2002; Wood, Froh, & Geraghty, 2010). People characterized by a grateful personality tend to be thankful and appreciative more frequently as well as to a wider array of people and events in daily life (McCullough, Emmons, & Tsang, 2002; Wood, Maltby, Stewart, Linley, & Joseph, 2008). A rich corpus of studies has demonstrated the robust associations between a grateful personality (or gratitude) and indicators of subjective well-being, such as life satisfaction and positive affect (Froh, Kashdan, Ozimkowski, & Miller, 2009; McCullough et al., 2002; Watkins, Woodward, Stone, & Kolts, 2003; Wood, Joseph, & Maltby, 2009). Gratitude was also inversely related to depressive symptoms (Lambert, Fincham, & Stillman, 2012; McCullough et al., 2002; Ruini & Vescovelli, 2013; Watkins et al., 2003; Wood, Joseph, & Linley, 2007), anxiety (McCullough et al., 2002; Vernon, Dillon, & Steiner, 2009), and a plethora of negative emotions including exhaustion, disappointment, and anger (DeWall, Lambert, Pond, Kashdan, & Fincham, 2012; Kashdan, Mishra, Breen, & Froh, 2009; Kashdan, Uswatte, & Julian, 2006; McCullough et al., 2002). These negative emotions are common among dementia caregivers (Pinquart & S€orensen, 2003; Schulz, O’Brien, Bookwala, & Fleissner, 1995). However, the role of gratitude on relieving emotional distress, such as perceived burden, has yet to be systematically examined in the context of familial caregiving for persons with dementia (PWDs). The association of gratitude with distress through resources and coping Psychologists have proposed two hypotheses to explain the salutary effects of gratitude. The first hypothesis (Fredrickson, 2004) puts forward that a grateful personality builds psychological resources in halcyon times. These psychological resources may include a greater sense of meaning, mastery, competence, perceived, and received social support (Kashdan, Mishra, Breen, & Froh, 2009; Lambert, Graham, Fincham, & Stillman, 2009; Lanham, Rye, Rimsky, & Weill, 2012; Wood et al., 2009). In turn, the accrued psychological resources may help reduce psychological distress in stressful times. Algoe’s (2012) find-remind-and-bind theory postulates how gratitude fosters social support. Specifically, gratitude signals the responsiveness of the benefactor to the beneficiary’s needs. The grateful emotion elicited, therefore, enables the beneficiary to locate high-quality social partners (i.e., the benefactor) who care for their well-being, and forms supportive interpersonal relationships. Algoe and her team replicated the effect of gratitude on relationship quality and social support among populations facing various stressors, including college freshmen adjusting to their new school life as well as women living with breast cancer (Algoe, Haidt, & Gable, 2008; Algoe & Stanton, 2012). Wood, Maltby, Stewart, Linley, and Joseph (2008) proposes that grateful individuals are inclined to regard benefits from others as more costly, valuable, and altruistic. Although this socio-cognitive account is not formulated to explain specifically how gratitude would facilitate appraisals of psychological resources, these gift perceptions may enable grateful individuals to perceive their lives as more favourably CONTACT Bobo Hi-Po Lau bobolau12@gmail.com, hpbl@hku.hk © 2015 Taylor & Francis AGING & MENTAL HEALTH, 2017 VOL. 21, NO. 4, 445À453 http://dx.doi.org/10.1080/13607863.2015.1114588 endowed. The study by Wood et al. (2009) indicates that gratitude is associated with enhanced autonomy, environmental mastery, purposefulness, personal growth, and self-acceptance, even after controlling for the effects of personality. Gratitude has also been found to be associated with higher levels of perceived mastery, internal locus of control, and perceived competence (Kashdan et al., 2009; Kashdan et al., 2006; Watkins et al., 2003). Several literature reviews have also proposed coping strategies as the mediator for the association between gratitude and reduced psychological distress (Emmons & Mishra, 2011; Wood et al., 2010). These reviews put forward that grateful individuals tend to cope with stress using a more adaptive repertoire of coping strategies (e.g., more positive reframing, more social support seeking, less self-blame), and therefore experience less distress in stressful encounters. On the basis of the transactional model of stress and coping (Lazarus & Folkman, 1984) and the categorization of coping strategies proposed by Carver, Scheier, and Weintraub (1989), Cooper, Katona, and Livingston (2008) validated a scheme that comprised three subscales for categorizing an array of coping strategies. Problem-focused coping refers to efforts to define a problem, generate alternative solutions, and conduct cost–benefit analysis for devising an action plan (e.g., active coping, planning, seeking instrumental social support). Emotion-focused coping is characterized by efforts to change one’s feeling and perceptions about the situation with the goal to lessen the emotional impact of the stressor (e.g., positive reframing, acceptance, seeking emotional support). Dysfunctional coping (e.g., denial, self-blame, behavioural disengagement) describes a cluster of coping strategies that may elicit adverse outcomes, especially when they are used alone or over a prolonged period. The current paper employed this framework to understand the role of coping strategies in mediating the relationship between gratitude and psychological distress. Through the habitual deployment of emotion-focused coping strategies (e.g., positive reframing, emotional social support seeking), grateful individuals tend to experience less emotional distress despite their stressful experiences (Emmons & Kneezel, 2005; Lambert et al., 2009; Watkins, Cruz, Holben, & Kolts, 2008). According to a study that investigated the link between gratitude and various coping strategies (Wood et al., 2007), gratitude was associated with seeking instrumental and emotional social support, active coping, positive reinterpretation and growth, and planning. Also, the personality trait was related to less use of dysfunctional coping, including behavioural disengagement, self-blame, and denial. In addition, positive reinterpretation and growth partially mediated the relationship between gratitude and perceived stress. Coping with dementia caregiving The present study aimed to investigate the role of gratitude on relieving caregiving distress among familial caregivers of PWDs. Taking care of a PWD induces chronic strain among caregivers, and this strain exerts a heavy toll on their mental and physical health (Pinquart & S€orensen, 2003; Vitaliano, Zhang, & Scanlan, 2003). Examining how gratitude facilitates the coping process may advance the understanding of researchers and practitioners on the individual differences in coping with caregiving distress. According to the caregiving and stress process formulated by Pearlin, Mullan, Semple, and Skaff (1990), multiple factors À the caregiving context, characteristics of stressor, coping style, and coping resources À collectively influence the physical and mental health impacts of caregiving. Empirical evidence regarding the benefits of each category of coping strategies is mixed. Li, Cooper, Bradley, Shulman, and Livingston (2012) conducted a meta-analysis on the relationship between coping strategies and psychological morbidity among familial caregivers of PWDs based on 35 independent studies. Results showed that dysfunctional coping was related to higher levels of anxiety and depression, whereas emotion-focused coping was associated with less psychological morbidity. Problem-focused coping was related to neither depression nor anxiety. In contrast, subsequent studies by Piercy and colleagues (2013) based on the Cache County Dementia Progression Study data-set have revealed that wishful thinking increased, but problemfocused coping reduced depressive symptoms among familial caregivers. Using semi-structured interviews, Au, Shardlow, Teng, Tsien, and Chan (2013) found that Hong Kong Chinese caregivers relied on internal self-regulation and forbearance to cope with their caregiving burdens. This finding resonates with Eastern philosophical teachings that advocate changing one’s perception, rather than the external environment, to tackle life stress. Psychological resources, such as sense of mastery and social support, are imperative to caregiver’s adjustment to their caregiving role. An early study by Haley, Levine, Brown and Bartolucci (1987) has demonstrated that social support and self-efficacy in tackling caregiving loads were associated with less depressive symptoms among dementia caregivers. In examining the mediating pathways for the relationship of caregiving stress with depressive symptoms, Mausbach and colleagues (2012) found that personal mastery and self-efficacy were robust mediators. The result is in line with the findings of Chow and Ho (2012) on Hong Kong Chinese caregivers, which demonstrated the predictability of psychological resources on mitigating depression. In a recent systematic review on models of burden in caregiving with 56 reports, Van der Lee, Bakker, Duivenvoorden, and Dr€oes (2014) underscored caregivers’ social functioning and support as well as perceived competence and selfefficacy as robust determinants of both burden and mental health, amongst other stressors including PWDs’ behavioural problems and mood disorders, self-care needs, and cognitive function. Numerous studies have examined the effects of other caregiver characteristics (e.g., ethnicity, relationship with the PWD, personality) on dementia caregiving experience (Hooker, Monahan, Bowman, Frazier, & Shifren, 1998; S€orensen & Pinquart, 2005). However, the current literature has largely neglected the role of malleable character strengths in coping with the caregiving role and tasks (Park, Peterson, & Seligman, 2004). Until recently have researchers begun to acknowledge and investigate the positive aspects of caregiving experience, such as personal growth (Cheng, Mak, Lau, Ng, & Lam, 2015; Tarlow et al., 2004), apart from its negative aspects. Gratitude may support the tendency of benefit finding and facilitate adaptation to the caregiving role. Adopting a grateful orientation to life (Wood, Froh, & Geraghty, 2010) may enable caregivers to appreciate the positive moments of caregiving, from the kind acts of a helpful neighbour to the tiny progress in 446 B. H.-P. LAU AND C. CHENG self-care made by the PWD. An appreciative and thankful caregiver is less likely to take these positive moments for granted (Wood, Maltby, Stewart, et al., 2008). In other words, gratitude may sharpen the sensitivity of the caregiver to appreciate the positive aspects of caregiving. A grateful person does not only recognize the occurrence of positive events (e.g., happy moments with the PWD), but also generously acknowledges the support from the people around or supernatural power (e.g., God). Reciprocation of kind acts may foster the relationship harmony between the grateful beneficiary and the benefactor (Algoe & Stanton, 2012). The prosocial nature of gratitude may, therefore, strengthen the perception of social support (Wood, Maltby, Gillett, Linley, & Joseph, 2008), in addition to reminding the beneficiary of their existing assets as well as their importance in the eyes of those have offered help (Algoe, 2012; Lambert et al., 2009; Wood et al., 2009). This study extended the caregiving literature by investigating the salutary role of gratitude in the coping process among familial caregivers of PWDs. Specifically, we hypothesized that gratitude was inversely associated with psychological distress of caregiving, indicated by caregiving burden and depressive symptoms. In addition, we posited that the beneficial role of gratitude on distress was mediated by coping strategies as well as psychological resources. The present findings, which reveal multivariate associations among gratitude, coping, and psychological distress of caregivers, may offer empirical support for the future adoption of gratitude interventions to caregivers of PWDs. Method Participant Participants were recruited from nine local non-governmental organizations (NGOs; see the Acknowledgement section for the name). These NGOs were chosen based on their extensive experience in dementia-related services and capacity to commit to the case load of the current study within the designated time frame of data collection. Chinese caregivers were recruited if they were 40À80 years old, provided care to a family member with dementia for no less than two hours per day, and were able to understand and speak Cantonese. Caregivers who were undergoing cancer treatment or participating in any structured counselling programmes were excluded. Except the age restriction, these inclusion and exclusion criteria were identical to those of a recent, territory-wide, multidimensional caregiver program (REACH-HK; Cheung et al., 2015). The age restriction was in place considering that local old-old caregivers tend to have low literacy level and may find some survey questions (e.g., coping strategies) too abstract to answer. All participants were remunerated 30 Hong Kong dollars for their participation. One hundred and nine eligible caregivers provided consent to participate in the study. Eight caregivers did not complete the face-to-face interview, and hence the questionnaire. They were either too distressed to answer the questions or had substantial difficulty understanding the survey questions. Their data were removed from the analysis. The final sample thus comprised 101 caregivers. Table 1 presents the demographic characteristics of the caregivers and PWDs. Measures Gratitude Gratitude was measured by both the Gratitude Adjective Scale (GAS; McCullough et al., 2002) and the Gratitude Questionnaire (GQ; McCullough et al., 2002). For the GAS, participants evaluated the extent to which the terms grateful, thankful, and appreciative described their everyday feelings in general. The GQ differs from the GAS in that the former does not only measure the frequency of gratitude felt in everyday life but also its span (the variety of gratitude-worthy events) and density (the number of objects one is grateful for in each specific event). In other words, the GQ complemented the GAS by considering more dimensions of the affective disposition (McCullough et al., 2002). Sample items of the GQ include ‘I have so much in life to be thankful for’ and ‘I am grateful to a wide variety of people.’ In this study, participants evaluated the extent to which the three GAS items described their everyday feelings, as well as their agreement with the six GQ items on a scale ranging from 1 (strongly disagree) to 7 (strongly agree). A study on Taiwan college students, however, indicated that Item 6 of the GQ (‘Long amounts of time can go by before I feel grateful to something or someone’) loaded poorly with other five items on a single gratitude dimension on a confirmatory factor analysis (Chen, Chen, Kee, & Tsai, 2009). Hence, we also tested the factor loadings of the six items on a single gratitude factor using confirmatory factor analysis with our sample. Although the overall model-data fit was good (x2 (9) D 8.67, p D .468, CFI D 1.00, TLI D 1.00, RMSEA D .000, SRMR D .034), Item 6 loaded poorly on the gratitude factor (factor loading D .13, p D .220), unlike the rest of the five items (factor loadings D .54À.90, p < .000). Table 1. Sample characteristics (N D 101). Variables CG characteristics n/Mean %/SD CG proportion of female 83 82.2 CG age 57.6 7.95 (range D 40À76) CG relationship with PWD Spouse 29 28.7 Children/children-in-law 71 70.3 Others (i.e., sister-in-law) 1 1.0 CG cohabiting with PWD 60 59.4 CG working (full time/part time)a 25 24.7 CG monthly household income (in HK dollar)b 5000 or below 26 25.7 5001À10,000 20 19.8 10,001À20,000 18 17.8 20,001À40,000 20 19.8 40,001 or more 10 10.0 CG education levelc Primary or less 32 31.7 Junior secondary 16 15.8 Senior secondary 30 29.7 Degree or more 18 17.8 CG with religious affiliationd 51 50.5 CG married 70 69.3 PWD characteristics PWD proportion of female 68 67.3 PWD age 81.7 9.36 (range D 59À100) No. of years since the diagnosis 4.42 3.23 Notes: CG D caregiver; PWD D person with dementia. a One participant did not provide his/her work status. b Seven participants did not provide their income level. c Five participants did not provide their education level. d One participant did not provide his/her religious affiliation. AGING & MENTAL HEALTH 447 Thus, following the practice of Chen et al. (2009), we removed Item 6 from the GQ in the subsequent analysis. Responses on the items were averaged to form the scale scores for each measure. Psychological resources Participants’ recent caregiving competence was operationalized as personal resources, whereas the receipt and satisfaction with social support were operationalized as social resources (Hobfoll, 2002). Caregiving competence was assessed by a four-item scale (Pearlin et al., 1990). Participants were asked to judge the accuracy of those items (e.g., ‘competent’, ‘self-confident’) as descriptions of themselves as caregivers and to answer on a scale ranging from 0 (totally inaccurate) to 3 (totally accurate). The average of the responses on these items formed the scale score of caregiving competence. Social support was measured by three types of received support (i.e., tangible, emotional, and informational) as well as the satisfaction with each type of support (Krause, 1995; Krause & Borawski-Clark, 1995). The receipt of social support does not always confer satisfaction and a beneficial effect to the well-being of the recipient. Support that compromises the autonomy and preferences of the caregivers may be less welcomed compared to the kind of assistance that is appropriate and respects the dignity of the beneficiary (Smith & Goodnow, 1999). Thus, we constructed an overall social support score by aggregating received social support and satisfaction of caregivers to it in this study. Many participants remarked that the first item of the received tangible support scale (‘provide transportation’) was largely irrelevant to their caregiving task because extremely few people in their social network had the capacity to offer such support (e.g., without a car), and they had restricted their daily activities (e.g., grocery shopping, going to the elderly centre and doctors) to their immediate vicinity. Thus, the item was removed, leaving the received tangible support with two items (‘help with household chores’ and ‘help with grocery shopping’). Both the received emotional (e.g., ‘comfort you when you are stressful’) and the received informational (e.g., ‘offer you information’) support were evaluated by four items. Participants assessed how often they received each type of support, and answered on a scale ranging from 0 (never) to 3 (always). Participants were also asked whether they were satisfied with the three types of social support (tangible, emotional, informational) they have received, and to respond on a scale ranging from 0 (totally dissatisfied) to 3 (very satisfied). The scores of the 13 items (2 on received tangible support, 4 on received emotional support, 4 on received informational support, and 3 on support satisfaction) were averaged to form the overall social support score. Coping strategies The Brief COPE (Carver, 1997) was used to measure participants’ deployment of coping strategies in the recent two weeks in response to the challenges encountered in caregiving. Prior to the administration of the questionnaire, the centre managers of two participating NGOs expressed concerns regarding the substance abuse items (‘using alcohol and other drugs to make myself feel better’ and ‘using alcohol and other drugs to help me get through it’), and requested removing them from the questionnaire in order to protect privacy and reduce unnecessary stigmatization to their clients. They remarked that the substance use items were too sensitive considering the negative connotation of using these substances to cope with caregiver stress, and the potential elderly abuse cases that often occurred along with substance abuse (Lachs & Pillemer, 2004). Thus, substance use was not measured in the current study. The remaining 13 coping strategies (active coping, planning, positive reframing, acceptance, humour, religious coping, emotional social support seeking, instrumental social support seeking, distraction, denial, venting, behavioural disengagement, and self-blame) with a total of 26 items were adopted. Each coping strategy was assessed by two items. The framework of Cooper et al. (2008) included three coping subscales. First, the problem-focused coping subscale comprised active coping, planning, and instrumental social support seeking. Second, the emotion-focused coping subscale consisted of acceptance, emotional social support seeking, humour, positive reframing, and religious coping. Third, the dysfunctional coping subscale comprised behavioural disengagement, self-blame, venting, denial, and distraction. Participants answered on a scale from 1 (never) to 4 (always) regarding their use of each coping strategy. Strategy scores and subscale scores were constructed by taking the average of the responses on the items. Psychological distress Psychological distress was measured by both caregiving burden and depressive symptoms. Caregiving burden, which described the levels of strains in different domains of life as a result of the caregiving role, was evaluated by a 12-item version of the Zarit Burden Interview (Tang et al., 2015). Participants evaluated the extent to which they had experienced the symptoms described by the items (e.g., ‘feel angry when you are around with CR’, ‘feel that your social life has suffered because you are caring for CR’) in the recent two weeks, and responded on a scale from 1 (never) to 5 (very often). Responses on the 12 items were averaged to form the caregiving burden score. Depressive symptoms were evaluated by the seven-item Center for Epidemiologic Studies À Depression Scale (CESD; Herrero & Meneses, 2006; Santor & Coyne, 1997). Sample items included ‘feel depressed’ and ‘have difficulty sleeping’. Participants evaluated the frequency of which they experienced each symptom in the previous two weeks and answered on a scale from 1 (never) to 4 (always). Responses on the seven items were averaged to form the depressive symptoms score. Procedures This study employed a cross-sectional design. Each session lasted for approximately one hour, and took place either in a private counselling room of the participating elderly centre or at the participant’s home. The items were shown on response cards to facilitate participants’ responses. Written informed consent was obtained before any questionnaire items were asked. All the sessions were conducted in Cantonese. The study materials were presented in traditional Chinese characters. Back-translation by independent bilingual research assistants was adopted to translate the English scale items into Chinese (Brislin & Freimanis, 2001). This study has received prior approval from the Human Research Ethics Committee for Non-clinical Faculties of the University of Hong Kong. 448 B. H.-P. LAU AND C. CHENG Analytic strategy The associations among gratitude, psychological resources, coping strategies, and psychological distress were first examined using bivariate correlations. Structural equation modelling (SEM) was then used to explore the interrelationships among gratitude, psychological resources, coping strategies, and psychological distress. The model-data fit was assessed by multiple indices (Hu & Bentler, 1999). Specifically, in the light of the small sample size, an acceptable model-data fit is indicated by failing to reject the null hypothesis of the x2 test of exact fit, attaining a standardized root-mean-square residual (SRMR) of less than 0.09, as well as a comparative fit index (CFI) of over .95. Other relevant indicators including TLI and RMSEA with cut-offs at .95 and .060 were also used. The SEM was performed using MPlus Version 6 (Muthen & Muthen, 1998À2011), whereas all other analyses were conducted with SPSS Version 19.0.0. Results Table 2 provides the descriptive statistics and reliabilities of gratitude, psychological resources, coping strategies, and psychological distress. Table 3 presents the intercorrelations among gratitude, psychological resources, coping strategies, and psychological distress. As expected, GQ and GAC were strongly associated with each other. GAC was positively related to social support and emotion-focused coping. GQ was associated with problem-focused coping as well as emotion-focused coping. Both types of psychological resources (social support and caregiving competence) were related to emotion-focused coping, caregiving burden, and depressive symptoms. Burden and depressive symptoms were related to dysfunctional coping, but neither emotion-focused nor problem-focused coping. We also examined the more nuanced relationships between gratitude and individual coping strategies. Both GQ and GAC were related to the enhanced use of positive reframing (GQ: r D .29, p D .004; GAC: r D .25, p D 012), acceptance (GQ: r D .30, p D .002; GAC: r D .26, p D 010), humour (GQ: r D .32, p D .001; GAC: r D .30, p D 003), religious coping (GQ: r D .24, p D .014; GAC: r D .24, p D 017), and emotional social support seeking (GQ: r D .28, p D .005; GAC: r D .29, p D 004), which all belong to the emotion-focused coping subscale. GQ was also associated with greater use of planning (r D .23, p D .024). In the light of the small sample size relative to the broad repertoire of coping strategies examined in this study, we included only the constituent items of emotion-focused coping into the tested model, as emotion-focused coping was the only subscale that had significant correlations with both GQ and GAC. Figure 1 displays the SEM results. The modeldata fit was sufficient (x2 (98) D 119.35, p D .0703, x2 /df D 1.19, CFI D .945, TLI D .933, RMSEA D .047, SRMR D .085).1 The x2 test result indicated a sufficient model fit. The model also fulfilled the criteria of good fit as required by SRMR. However, marginal model fit was indicated by the CFI. The direct effects from gratitude to both coping resources and emotionfocused coping, and that from psychological resources to psychological distress, were significant.2 Although the indirect effect via emotion-focused coping (b D ¡0.05, p D .491) and psychological resources (b D ¡0.17, p D .070) were non-significant, the combined indirect effects via both mediators were significant (b D ¡0.22, p D .016). Discussion This study examined the role of gratitude on the coping process among a group of Hong Kong familial caregivers of PWDs. The results suggest that gratitude is positively associated with a higher level of psychological resources, as well as emotion-focused coping. In turn, psychological resources and emotion-focused coping together mediated the relationship of gratitude with psychological distress. The levels of gratitude among our participants are comparable to those of other samples. Taking GQ as an example, McCullough et al. (2002) recorded a mean score of 5.92 and standard deviation (SD) of 0.88 among an American college student sample. In a Taiwanese study applying the Chinese version of GQ to the study of married couples, the mean score was 6.01 (SD D 0.85) for wives (mean age D 37.5) and 5.64 (SD D 0.93) for husbands (mean age D 40.1). With the current mean score of 5.60 and SD of 1.03, we contend that the levels of gratitude for caregivers in the current study were Table 2. Descriptive statistics and reliabilities of gratitude, psychological resources, coping strategies, and psychological distress (N D 101). Variables M SD a Gratitude Grateful Adjective Scale 5.40 1.10 .79 Gratitude Questionnaire 5.60 1.03 .86 Psychological resources Caregiving competence 1.78 0.73 .88 Social support 1.52 0.56 .85 Coping strategies Active coping 2.95 0.79 .73 Planning 2.57 0.95 .78 Positive reframing 2.72 0.92 .64 Acceptance 3.10 0.72 .50 Humour 2.40 0.84 .43 Religious coping 1.93 1.05 .88 Emotional social support seeking 2.29 0.83 .80 Instrumental social support seeking 2.38 0.80 .81 Distraction 2.43 0.92 .72 Denial 1.10 0.28 .21 Venting 2.19 0.70 .71 Behavioural disengagement 1.35 0.59 .72 Self-blame 1.72 0.65 .73 Coping strategies subscales Problem-focused coping 2.63 0.65 .78 Emotion-focused coping 2.46 0.53 .71 Dysfunctional coping 1.76 0.35 .60 Psychological distress Caregiving burden 3.24 0.69 .82 Depressive symptoms 2.07 0.85 .90 Table 3. Correlations among gratitude, psychological resources, coping strategies subscales and psychological distress (N D 101). 1. GQ 2. GAS 3. CC 4. SS 5. PFC 6. EFC 7. DC 8. ZB 9. DS 2. .70ÃÃ 3. .11 .17 4. .05 .21Ã .31ÃÃ 5. .23Ã .17 .18 .08 6. .47ÃÃ .43ÃÃ .24Ã .25Ã .42ÃÃ 7. .06 ¡.11 ¡.14 ¡.18 .01 .05 8. ¡.03 ¡.10 ¡.25Ã ¡.22Ã .19 ¡.13 .37ÃÃ 9. ¡.12 ¡.17 ¡.29ÃÃ ¡.34ÃÃ .15 ¡.16 .42ÃÃ .67ÃÃ Notes: GQ D Gratitude Questionnaire; GAS D Grateful Adjective Scale; CC D caregiving competence; SS D social support; PFC D problem-focused coping; EFC D emotion-focused coping; DC D dysfunctional coping; ZB D caregiving burden; DS D depressive symptoms. Ã p < .05; ÃÃ p < .01. AGING & MENTAL HEALTH 449 comparable with those for samples from other studies. There was a reasonable spread in responses in the present sample. The robust association between gratitude and emotionfocused coping aligned with previous findings from studies of other populations (e.g., Lambert et al., 2009; Wood et al., 2007). In contrary to the results of Wood et al., dysfunctional coping was not related to gratitude in the present sample. A point to note is that the samples in Wood et al. (2007) have very different characteristics from the present sample (e.g., age). Also, the former evaluated coping strategies in the context of everyday lives, whereas the present study focused on coping for dementia caregiving. There is so far little research on the relationships between gratitude and coping strategies other than emotion-focused coping and social support seeking. Therefore, we call for future studies to further explore the associations of dysfunctional coping and grateful personality. The present findings highlight the benefits of gratitude in coping with dementia caregiving, and suggest that gratitude may facilitate the experience of positive aspects of caregiving (Peacock et al., 2010; Tarlow et al., 2004). A recent qualitative study found that Hong Kong familial caregivers of PWDs spontaneously experienced several positive aspects of caregiving in their daily lives (Cheng et al., 2015). These positive aspects are highly relevant to the adaptive coping strategies and psychological resources that were found to be associated with gratitude in the current study. First, this study revealed that caregivers experience relief by reinterpreting the behavioural symptoms of PWDs as a consequence of disease progression. Caregivers also tended to use humour to reframe their experienced hassles. The habit of emotion-focused coping among grateful caregivers may help them adroitly adopt these adaptive reinterpretations. Second, a sense of purpose and commitment, as well as a sense of mastery and emotional calmness prevailed among the spontaneous reports of positive aspects of caregiving in Cheng et al.’s study. Frequent experiences of gratitude may support the accumulation of psychological resources such as caregiving competence, sense of meaning, and positive affect (Fredrickson, 2004). Thus, grateful caregivers may demonstrate greater emotional adjustment to their role. Moreover, grateful caregivers may establish caring and loving relationships with family members, friends, and practitioners through appreciating their kind help and professional assistance. Through reciprocating the kindness of the benefactors, grateful caregivers may, in turn, experience a greater sense of mastery from their caregiving role too. As reported by Cheng and colleagues, caregivers were exhilarated by knowing that their works were appreciated by their relatives and friends, as well as that their shared experience has been beneficial to other caregivers. The ability to respond with gratitude to the gratitude of others (friends, relatives, other caregivers) is imperative to experiencing these elating moments. In the light of these findings, we propose that gratitude may be a personality antecedent for experiencing higher levels of positive aspects of caregiving. Specifically, gratitude may facilitate the accrual of psychological resources eliciting caregiving gains, such as caregiving competence and social support. Gratitude may also foster emotion-focused coping needed for experiencing caregiving gains, including positive reframing, emotional social support seeking, and religious coping. Frequent experiences of positive aspects of caregiving may enhance role adjustment demonstrated by experiencing less caregiving burden and depressive symptoms. Although the findings of the current study have supported the hypothesized positive link of gratitude with emotion-focused coping, psychological resources, and psychological distress, future studies are encouraged to investigate the role of positive aspects of caregiving in the association of gratitude with mental health. Figure 1. SEM model (N D 98). Notes: Standardized coefficients were shown. Residuals of indicators were not shown on the diagram. The loadings from residuals to indicators were set at 1. Significant direct effects were denoted by bold arrows (p < .05). Non-significant direct effects were indicated by dotted arrows. GQ D Gratitude Questionnaire; GAS D Grateful Adjectives Scale; CC D caregiving competence; SS D social support; RE1 D item 1 on positive reframing; RE2 D item 2 on positive reframing; AP 1 D item 1 on acceptance; AP2 D item 2 on acceptance; HU1 D item 1 on humour; HU2 D item 2 on humour; RC1 D item 1 on religious coping; RC2 D item 2 on religious coping; ES1 D item 1 on emotional social support seeking; ES2 D item 2 on emotional social support seeking; ZB D caregiving burden; DS D depressive symptoms. 450 B. H.-P. LAU AND C. CHENG Understanding the role of malleable character strengths, such as gratitude, in dementia, caregiving may also help shift the focus of non-pharmacological caregiver interventions from one that emphasizes risks and losses to one that empowers and capitalizes on caregivers’ strengths and gains (Peacock et al., 2010). The current findings suggest that gratitude interventions could be particularly useful for improving participants’ perception of psychological resources as well as enabling them to adopt more emotion-focused coping strategies, such as emotional social support seeking and positive reframing. Gratitude interventions that commonly involve regular journaling or reflecting on gratitude-worthy events have been found to result in robust improvement in life satisfaction and emotional well-being (Emmons & McCullough, 2003; Ho, Yeung, & Kwok, 2014; Seligman, Steen, Park, & Peterson, 2005). Cheng, Lau, Mak, Ng, and Lam (2014) have reported preliminary success in a benefit-finding intervention with dementia caregivers. Gratitude intervention, which enables caregiver to appreciate the origin of benefits in addition to acknowledging the presence of benefits, may engender even greater results in terms of social support and relationship satisfaction. Nonetheless, studies on the effect of gratitude intervention for alleviating the physical and psychological strains of dementia caregiving are scant. Gratitude intervention has been found to fit well in multi-component positive psychological interventions for elderly (Killen & Macaskill, 2015; Proyer, Gander, Wellenzohn, & Ruch, 2014). Future studies may explore the benefits of gratitude intervention in non-pharmacological programmes that aims at enhancing subjective well-being for caregivers (Schulz, 2000). The person-centred approach (Kitwood, 1997) describes dementia caregiving as a meaningful and dignified relationship between the caregiver and the PWD. A common misconception about dementia caregiving is that the relationship is a one-way drive involving the caregivers giving without the care recipients reciprocating. Dementia often involves a long journey of gradual deterioration. Although caregivers in Cheng et al.’s (2015) study reported experiencing the gratitude of their family members with dementia as an elating moment, few studies have investigated how individuals of limited mental capacity express the love and care for their caregivers, and how caregivers perceive this altered form of (but not necessarily diminished) reciprocity. A recent study by Monin, Schulz, and Feeney (2014) showed that compassionate love of the PWDs and caregivers were associated with less caregiving burden and greater positive aspects of caregiving. Although gratitude was not included in the analysis, it is conceivable that the expression and feelings of gratitude of the PWDs and the caregivers may facilitate the experience of compassionate love for each other, which in turn foster caregiving gains and well-being. Understanding the grateful experience of both parties of the dyadic caregiving relationship may help researchers and practitioners appreciate the nature and motivation behind the onerous but meaningful caregiving role. This study possesses several limitations. First, the cross-sectional nature of the data-set precluded causal inferences on the relationships among gratitude, psychological resources, coping strategies, and psychological distress. Second, the modest sample size may have limited the statistical power of the SEM analysis (Anderson & Gerbing, 1988; MacCallum, Browne, & Sugawara, 1996). Third, because the coping strategies and social support variables were collected through selfreport, they may not necessarily indicate actual behavioural options. Future studies are encouraged to adopt longitudinal cross-lagged designs to delineate the directions of causal relationships and employ experience sampling paradigms to capture actual behavioural options of caregivers. Lastly, the current sample was homogeneous in terms of ethnic background and was relatively young. They were also recruited from centres that established track records in dementiarelated care. The generalizability of the findings to caregivers who are older, of other demographic characteristics, and not reachable by established dementia-related social services awaits confirmation. Nonetheless, we acknowledge the utility of using qualitative studies to examine how gratitude facilitates adaptation to the caregiving role, especially among older caregivers who may have difficulties articulating their experiences by quantitative measures. Conclusion This study examined the role of gratitude on the coping process of caregivers of PWDs. The results demonstrate that gratitude is related to higher levels of psychological resources as well as emotion-focused coping. In turn, psychological resources and emotion-focused coping mediated the relationship of gratitude with lessening psychological distress. These findings may provide empirical foundation for incorporating gratitude into non-pharmacological interventions for caregivers of PWDs. They may also facilitate researchers and practitioners to appreciate the role of character strengths in the caregiving process. Acknowledgements This study was supported by the HKU COA JMK Dementia Care Scholarship awarded to the first author. The authors thank Prof. Terry Lum and Dr Karen Cheung for their suggestions on the design of the study, Mr Bobby Leung and Ms Iris Cheng for their assistance on data collection and data preparation and the nine participating non-governmental organizations (Baptist Oi Kwan Social Service, Hong Kong Alzheimer’s Disease Association, Sik Sik Yuen, St. James Settlement, The Hong Kong Society for Rehabilitation, The Salvation Army-Hong Kong and Macau Command, The Evangel Lutheran Church of Hong Kong, Yan Chai Hospital Social Service Department and Yan Oi Tong) for their efforts in recruiting participants. Disclosure statement No potential conflict of interest was reported by the authors. Notes 1. The SEM model was conducted on 98 participants. Two missing responses were found on a positive reframing item, with another missing response found on an emotional social support seeking item. 2. The pattern of significant effects remained the same after controlling for activities of daily living and problem behaviours of PWDs, caregiver gender, caregiver age, caregiver’s religious affiliation, and number of years of dementia diagnosis. Significant effects were found for the association between gratitude and emotion-focused coping, between gratitude and psychological resources, and between psychological resources and psychological distress. AGING & MENTAL HEALTH 451 References Algoe, S.B. (2012). Find, remind, and bind: The functions of gratitude in everyday relationships. Social and Personality Psychology Compass, 6, 455À469. doi:10.1111/j.1751-9004.2012.00439.x Algoe, S.B., Haidt, J., & Gable, S.L. (2008). Beyond reciprocity: Gratitude and relationships in everyday life. Emotion, 8, 425À429. doi:10.1037/1528- 3542.8.3.425 Algoe, S.B., & Stanton, A.L. (2012). Gratitude when it is needed most: Social functions of gratitude in women with metastatic breast cancer. Emotion, 12, 163À168. doi:10.1037/a0024024 Anderson, J.C., & Gerbing, D.W. (1988). Structural equation modeling in practice: A review and recommended two-step approach. Psychological Bulletin, 103, 411À423. doi:10.1037/0033-2909.103.3.411 Au, A., Shardlow, S.M., Teng, Y., Tsien, T., & Chan, C. (2013). Coping strategies and social support-seeking behaviour among Chinese caring for older people with dementia. Ageing and Society, 33, 1422À1441. doi:10.1017/S0144686£12000724. Brislin, R.W., & Freimanis, C. (2001). Back-translation: A tool for cross-cultural research. In S.W. Chan, & D.E. Pollard (Eds.), An Encyclopaedia of Translation: Chinese-English, English-Chinese (pp. 22À40). Hong Kong: The Chinese University Press. Carver, C.S. (1997). You want to measure coping but your protocol’s too long: Consider the brief COPE. International Journal of Behavioral Medicine, 4, 92À100. doi:10.1207/s15327558ijbm0401_6 Carver, C.S., Scheier, M.F., & Weintraub, J.K. (1989). Assessing coping strategies: A theoretically based approach. Journal of Personality and Social Psychology, 56, 267À283. doi:10.1037/0022-3514.56.2.267 Chen, L.H., Chen, M.-Y., Kee, Y.H., & Tsai, Y.-M. (2009). Validation of the Gratitude Questionnaire (GQ) in Taiwanese undergraduate students. Journal of Happiness Studies, 10, 655À664. doi:10.1007/s10902-008- 9112-7 Cheng, S.-T., Lau, R.W., Mak, E.P., Ng, N.S., & Lam, L.C. (2014). Benefit-finding intervention for Alzheimer caregivers: Conceptual framework, implementation issues, and preliminary efficacy. The Gerontologist, 54, 1049À1058. doi:10.1093/geront/gnu018 Cheng, S.-T., Mak, E.P., Lau, R.W., Ng, N.S., & Lam, L.C. (2015). Voices of Alzheimer caregivers on positive aspects of caregiving. The Gerontologist. Advance online publication. doi:10.1093/geront/gnu118 Cheung, K.S.L., Lau, B.H.P., Wong, P.W.C., Leung, A.Y.M., Lou, V.W., Chan, G. M.Y., & Schulz, R. (2015). Multicomponent intervention on enhancing dementia caregiver wellÀbeing and reducing behavioral problems among Hong Kong Chinese: A translational study based on REACH II. International Journal of Geriatric Psychiatry, 30, 460À469. doi:10.1002/ gps.4160 Chow, E.O.W., & Ho, H.C.Y. (2012). The relationship between psychological resources, social resources, and depression: Results from older spousal caregivers in Hong Kong. Aging and Mental Health, 16, 1016À1027. doi:10.1037/0882-7974.2.4.323 Cooper, C., Katona, C., & Livingston, G. (2008). Validity and reliability of the Brief COPE in carers of people with dementia. Journal of Nervous and Mental Disorders, 196, 838À843. doi:10.1097/NMD.0b013e31818b504c DeWall, C.N., Lambert, N.M., Pond, R.S., Kashdan, T.B., & Fincham, F.D. (2012). A grateful heart is a nonviolent heart: Cross-sectional, experience sampling, longitudinal, and experimental evidence. Social Psychological and Personality Science, 3, 232À240. doi:10.1177/ 1948550611416675 Emmons, R.A., & Crumpler, C.A. (2000). Gratitude as a human strength: Appraising the evidence. Journal of Social and Clinical Psychology, 19, 56À69. doi:10.1521/jscp.2000.19.1.56 Emmons, R.A., & Kneezel, T.E. (2005). Giving thanks: Spiritual and religious correlates of gratitude. Journal of Psychology and Christianity, 24(2), 140À148. Emmons, R.A., & McCullough, M.E. (2003). Counting blessings versus burdens: An experimental investigation of gratitude and subjective wellbeing in daily life. Journal of Personality and Social Psychology, 84, 377À389. doi:10.1037/0022-3514.84.2.377 Emmons, R.A., & Mishra, A. (2011). Why gratitude enhances well-being: What we know, what we need to know. In K.M. Sheldon, T.B. Kashdan, & M.F. Steger (Eds.), Designing positive psychology: Taking stock and moving forward (pp. 248À264). New York, NY: Oxford University Press. Emmons, R.A., & Shelton, C.M. (2002). Gratitude and the science of positive psychology. In C.R. Snyder, & S.J. Lopez (Eds.), Handbook of positive psychology (pp. 459À471). New York, NY: Oxford University Press. Fredrickson, B.L. (2004). Gratitude, like other positive emotions, broadens and builds. In R.A. Emmons, & M.E. McCullough (Eds.), The psychology of gratitude (pp. 145À166). New York, NY: Oxford University Press. Froh, J.J., Kashdan, T.B., Ozimkowski, K.M., & Miller, N. (2009). Who benefits the most from a gratitude intervention in children and adolescents? Examining positive affect as a moderator. Journal of Positive Psychology, 4, 408À422. doi:10.1080/17439760902992464 Haley, W.E., Levine, E.G., Brown, S.L., & Bartolucci, A.A. (1987). Stress, appraisal, coping, and social support as predictors of adaptational outcome among dementia caregivers. Psychology and Aging, 2, 323À330. doi:10.1037/0882-7974.2.4.323 Herrero, J., & Meneses, J. (2006). Short web-based versions of the perceived stress (PSS) and Center for Epidemiological Studies À Depression (CESD) scales: A comparison to pencil and paper responses among Internet users. Computers in Human Behavior, 22, 830À846. doi:10.1016/j.chb.2004.03.007 Ho, H.C., Yeung, D.Y., & Kwok, S.Y.C.L. (2014). Development and evaluation of the positive psychology intervention for older adults. Journal of Positive Psychology, 9, 187À197. doi:10.1080/17439760.2014.888577 Hobfoll, S.E. (2002). Social and psychological resources and adaptation. Review of General Psychology, 6, 307À324. doi:10.1037/1089- 2680.6.4.307 Hooker, K., Monahan, D.J., Bowman, S.R., Frazier, L.D., & Shifren, K. (1998). Personality counts for a lot: Predictors of mental and physical health of spouse caregivers in two disease groups. Journals of Gerontology: Psychological Sciences and Social Sciences, 53B, P73ÀP85. doi:10.1093/ geronb/53B.2.P73 Hu, L.T., & Bentler, P.M. (1999). Cutoff criteria for fit indexes in covariance structure analysis: Conventional criteria versus new alternatives. Structural Equation Modeling: A Multidisciplinary Journal, 6, 1À55. doi:10.1080/10705519909540118 Kashdan, T.B., Mishra, A., Breen, W.E., & Froh, J.J. (2009). Gender differences in gratitude: Examining appraisals, narratives, the willingness to express emotions, and changes in psychological needs. Journal of Personality, 77, 691À730. doi:10.1111/j.1467-6494.2009.00562.x Kashdan, T.B., Uswatte, G., & Julian, T. (2006). Gratitude and hedonic and eudaimonic well-being in Vietnam war veterans. Behaviour Research and Therapy, 44, 177À199. doi:10.1016/j.brat.2005.01.005 Killen, A., & Macaskill, A. (2015). Using a gratitude intervention to enhance well-being in older adults. Journal of Happiness Studies, 16, 947À964. doi:10.1007/s10902-014-9542-3 Kitwood, T. (1997). Dementia reconsidered: The person comes first. London: Open University Press. Krause, N. (1995). Negative interaction and satisfaction with social support among older adults. Journals of Gerontology: Psychological Sciences and Social Sciences, 50B, P59ÀP73. doi:10.1093/geronb/50B.2.P59 Krause, N., & Borawski-Clark, E. (1995). Social class differences in social support among older adults. The Gerontologist, 35, 498À508. doi:10.1093/geront/35.4.498 Lachs, M.S., & Pillemer, K. (2004). Elder abuse. Lancet, 364, 1263À1272. doi:10.1016/S0140-6736(04)17144-4 Lambert, N.M., Fincham, F.D., & Stillman, T.F. (2012). Gratitude and depressive symptoms: The role of positive reframing and positive emotion. Cognition & Emotion, 26, 615À633. doi:10.1080/02699931.2011.595393 Lambert, N.M., Graham, S.M., Fincham, F.D., & Stillman, T.F. (2009). A changed perspective: How gratitude can affect sense of coherence through positive reframing. Journal of Positive Psychology, 4, 461À470. doi:10.1080/17439760903157182 Lanham, M.E., Rye, M.S., Rimsky, L.S., & Weill, S.R. (2012). How gratitude relates to burnout and job satisfaction in mental health professionals. Journal of Mental Health Counseling, 34(4), 341À354. Lazarus, R.S., & Folkman, S. (1984). Stress, appraisal, and coping. New York, NY: Springer. Li, R., Cooper, C., Bradley, J., Shulman, A., & Livingston, G. (2012). Coping strategies and psychological morbidity in family carers of people with dementia: A systematic review and meta-analysis. Journal of Affective Disorders, 139, 1À11. doi:10.1016/j.jad.2011.05.055 MacCallum, R.C., Browne, M.W., & Sugawara, H.M. (1996). Power analysis and determination of sample size for covariance structure modeling. Psychological Methods, 1, 130À149. doi:10.1037/1082-989X.1.2.130 Mausbach, B.T., Roepke, S.K., Chattillion, E.A., Harmell, A.L., Moore, R., Romero-Moreno, R., … Grant, I. (2012). Multiple mediators of the relations between caregiving stress and depressive symptoms. Aging and Mental Health, 16, 27À38. doi:10.1037/0882-7974.2.4.323 452 B. H.-P. LAU AND C. CHENG McCullough, M.E., Emmons, R.A., & Tsang, J.-A. (2002). The grateful disposition: A conceptual and empirical topography. Journal of Personality and Social Psychology, 82, 112À127. doi:10.1037/0022-3514.82.1.112 Monin, J.K., Schulz, R., & Feeney, B.C. (2014). Compassionate love in individuals with Alzheimer0 s disease and their spousal caregivers: Associations with caregivers0 psychological health. The Gerontologist. Advance online publication. doi:10.1093/geront/gnu001 Muthen, L.K., & Muthen, B.O. (1998À2011). Mplus user’s guide (6th ed). Los Angeles, CA: Muthen & Muthen. Park, N., Peterson, C., & Seligman, M.E. (2004). Strengths of character and well-being. Journal of Social and Clinical Psychology, 23, 603À619. doi:10.1521/jscp.23.5.603.50748 Peacock, S., Forbes, D., Markle-Reid, M., Hawranik, P., Morgan, D., Jansen, L., … Henderson, S.R. (2010). The positive aspects of the caregiving journey with dementia: Using a strengths-based perspective to reveal opportunities. Journal of Applied Gerontology, 29, 640À659. doi:10.1177/0733464809341471 Pearlin, L.I., Mullan, J.T., Semple, S.J., & Skaff, M.M. (1990). Caregiving and the stress process: An overview of concepts and their measures. The Gerontologist, 30, 583À594. doi:10.1093/geront/30.5.583 Piercy, K.W., Fauth, E.B., Norton, M.C., Pfister, R., Corcoran, C.D., Rabins, P.V., … Tschanz, J.T. (2013). Predictors of dementia caregiver depressive symptoms in a population: The cache county dementia progression study. Journals of Gerontology: Psychological Sciences and Social Sciences, 68B, 921À926, doi:10.1093/geronb/gbs116 Pinquart, M., & S€orensen, S. (2003). Differences between caregivers and noncaregivers in psychological health and physical health: A metaanalysis. Psychology and Aging, 18, 250À267. doi:10.1037/0882- 7974.18.2.250 Proyer, R.T., Gander, F., Wellenzohn, S., & Ruch, W. (2014). Positive psychology interventions in people aged 50À79 years: Long-term effects of placebo-controlled online interventions on well-being and depression. Aging & Mental Health, 18, 1À9. doi:10.1080/13607863.2014.899978 Ruini, C., & Vescovelli, F. (2013). The role of gratitude in breast cancer: Its relationships with post-traumatic growth, psychological well-being and distress. Journal of Happiness Studies, 14, 263À274. doi:10.1007/ s10902-012-9330-x Santor, D.A., & Coyne, J.C. (1997). Shortening the CESÀD to improve its ability to detect cases of depression. Psychological Assessment, 9, 233À243. doi:10.1037/1040-3590.9.3.233 Schulz, R.E. (2000). Handbook on dementia caregiving: Evidence-based interventions for family caregivers. New York, NY: Springer. Sculz, R., O’Brien, A.T., Bookwala, J., & Fleissner, K. (1995). Psychiatric and physical morbidity effects of dementia caregiving: Prevalence, correlates, and causes. The Gerontologist, 35, 771À791. doi:10.1093/geront/ 35.6.771 Seligman, M.E., Steen, T.A., Park, N., & Peterson, C. (2005). Positive psychology progress: Empirical validation of interventions. American Psychologist, 60, 410À421. doi:10.1037/0003-066X.60.5.410 Smith, J., & Goodnow, J.J. (1999). Unasked-for support and unsolicited advice: Age and the quality of social experience. Psychology and Aging, 14, 108À121. doi:10.1037/0882-7974.14.1.108 S€orensen, S., & Pinquart, M. (2005). Racial and ethnic differences in the relationship of caregiving stressors, resources, and sociodemographic variables to caregiver depression and perceived physical health. Aging & Mental Health, 9, 482À495. doi:10.1080/13607860500142796 Tang, J.Y., Ho, A.H., Luo, H., Wong, G.H., Lau, B.H., Lum, T.Y., & Cheung, K.S. (2015). Validating a Chinese short version of the Zarit Burden Interview (CZBI-Short) for dementia caregivers. Aging and Mental Health. Advance online publication. doi:10.1080/13607863.2015.1047323 Tarlow, B.J., Wisniewski, S.R., Belle, S.H., Rubert, M., Ory, M.G., & GallagherThompson, D. (2004). Positive aspects of caregiving: Contributions of the REACH Project to the development of new measures for Alzheimer’s caregiving. Research on Aging, 26, 429À453. doi:10.1177/ 0164027504264493 van der Lee, J., Bakker, T.J.E.M., Duivenvoorden, H.J., & Dr€oes, R.M. (2014). Multivariate models of subjective caregiver burden in dementia: A systematic review. Ageing Research Reviews, 15, 76À93. doi:10.1016/j. arr.2014.03.003 Vernon, L.L., Dillon, J.M., & Steiner, A.R. (2009). Proactive coping, gratitude, and posttraumatic stress disorder in college women. Anxiety, Stress, & Coping, 22, 117À127. doi:10.1080/10615800802203751 Vitaliano, P.P., Zhang, J., & Scanlan, J.M. (2003). Is caregiving hazardous to one’s physical health? A meta-analysis. Psychological Bulletin, 129, 946À972. doi:10.1037/0033-2909.129.6.946 Watkins, P.C., Cruz, L., Holben, H., & Kolts, R.L. (2008). Taking care of business? Grateful processing of unpleasant memories. Journal of Positive Psychology, 3, 87À99. doi:10.1080/17439760701760567 Watkins, P.C., Woodward, K., Stone, T., & Kolts, R.L. (2003). Gratitude and happiness: Development of a measure of gratitude, and relationships with subjective well-being. Social Behavior and Personality, 31, 431À451. doi:10.2224/sbp.2003.31.5.431 Wood, A.M., Froh, J.J., & Geraghty, A.W. (2010). Gratitude and well-being: A review and theoretical integration. Clinical Psychology Review, 30, 890À905. doi:10.1016/j.cpr.2010.03.005 Wood, A.M., Joseph, S., & Linley, P.A. (2007). Coping style as a psychological resource of grateful people. Journal of Social and Clinical Psychology, 26, 1076À1093. doi:10.1521/jscp.2007.26.9.1076 Wood, A.M., Joseph, S., & Maltby, J. (2009). Gratitude predicts psychological well-being above the Big Five facets. Personality and Individual Differences, 46, 443À447. doi:10.1016/j.paid.2008.11.012 Wood, A.M., Maltby, J., Gillett, R., Linley, P.A., & Joseph, S. (2008). The role of gratitude in the development of social support, stress, and depression: Two longitudinal studies. Journal of Research in Personality, 42, 854À871. doi:10.1016/j.jrp.2007.11.003 Wood, A.M., Maltby, J., Stewart, N., Linley, A.P., & Joseph, S. (2008). A socialcognitive model of trait and state levels of gratitude. Emotion, 8, 281À290. doi:10.1037/1528-3542.8.2.281 AGING & MENTAL HEALTH 453