PRACTICAL Week 5 - ANOVA


1.      Open the dataset students.sav

2.      Paste all calculations and answers to syntax file and save it regularly!


3.      Test whether there is a statistically significant difference of weight by school grade
(recoded)

a.       How is school grade distributed?

b.      Recode school grade into 3 groups: 6-7, 8-9, 10+

c.       Are there outliers in the DV or the IV?

d.      Obtain a plot

e.       Run Welch test

4.      Run a post-hoc test

a.       Which groups are significantly different?

b.      Write-up the results


5.      Test whether this effect remains once we control for height

a.       Run a post-hoc test

b.      Obtain a plot


6.      Test the effects of gender and grade on weight

a.       Is there a significant interaction?

b.      Obtain a plot


7.      Test whether there are sig. differences in weight by gender

a.       Report t test

b.      Report F test


Submit your practical:

Save your syntax file to Homework Vaults