You want to determine the optimal tutor-to-student ratio. Students seeking tutoring will be randomly assigned to one of three groups:
Group 1 will involve each tutor working with only one student; in Group 2, each tutor will work with two students; and in Group 3, each tutor will work with five students. At the end of the term, students will be asked to complete the Tutor Satisfaction Survey, which renders a score from 0 to 100, and the number of months that the tutor has been providing tutoring service (as the covariate).
Data set: Ch 06 – Exercise 01A.sav
Codebook
Variable: Group
Definition: Group number
Type: Categorical (1 = One-to-one, 2 = Two-to-one, 3 = Five-to-one)
Variable: TSS
Definition: Tutor Satisfaction Survey score
Type: Continuous (0 = very unsatisfied . . . 100 = very satisfied)
Variable: Tutor_months
Definition: Number of months the tutor has been providing tutor service
Type: Continuous
a. Write the hypotheses.
b. Run each criterion of the pretest checklist (homogeneity of regression slopes, homogeneity of variance [Levene’s test]) and discuss your findings.
c. Run the ANCOVA test and document your findings (ns, means, and Sig. [p value], hypotheses resolution).
d. Write an abstract under 200 words detailing a summary of the study, the ANCOVA test results, hypothesis resolution, and implications of your findings.