Kirsten runs an experiment for her research methods class in which she studies vocabulary learning in one group of introductory-level French students. At the start of the semester, she assesses these students' knowledge of French vocabulary; she does another assessment at the end of the semester. What statistical test should she use to see whether her group of French students significantly increased their knowledge of French vocabulary?
A) independent samples t test
B) one-way repeated measures analysis of variance
C) one-way analysis of variance
D) two-way analysis of variance

Question

Quizplus · Accepted Answer

The correct statistical test for comparing the same group of participants on two different occasions (e.g., before and after an intervention) is the one-way repeated measures analysis of variance (ANOVA). This test is used to determine if there are statistically significant differences between the means of three or more related groups. In Kirsten's case, she is comparing the same group of students at two time points, making the one-way repeated measures ANOVA the appropriate choice.

Kirsten Runs an Experiment for Her Research Methods Class in Which