Statistics for Two Group Experiments Blake matched subjects on GPA before randomly assigning them to one of two Graduate Record Exam (GRE) preparation conditions (self-study or workshop).Which statistical test should he use to analyze his dependent variable which is a score from 0-100 on a GRE practice test?
A)t test for independent groups
B)t test for matched groups
C)two-way ANOVA
D)Wilcoxon test

Question

Quizplus · Accepted Answer

Since the subjects were matched on GPA, the appropriate statistical test to use is a t test for matched groups (also known as a paired samples t test). This will allow for more precise comparison between the two groups as any variation due to GPA would be accounted for.

Statistics for Two Group Experiments Blake Matched Subjects on GPA