In his study of effectiveness of driver's education programs, Cameron administers a practice items from a drivers' test. Participants are randomly assigned to one of two treatments, either a tutorial that narrates content, or an equivalent amount of time to practice items with feedback. After the treatment, Cameron again assesses students' knowledge with a drivers' test. He set his alpha at p=.05, and reported that significant differences indicated that those in the practice with feedback condition outperformed those in the tutorial condition.
-Which of the following were appropriate for Cameron to use to analyze his data? T-test
A) ANCOVA
B) Chi Square
C) Pearson r
D) HLM

Question

Quizplus · Accepted Answer

Since Cameron is comparing the performance of two groups (tutorial and practice with feedback) on a continuous variable (knowledge score), a t-test is the appropriate statistical analysis method to test for significant differences between them. ANCOVA, Chi-Square, Pearson r, and HLM are not appropriate for this type of analysis.

In His Study of Effectiveness of Driver's Education Programs, Cameron