A Researcher Conducts a Study on the Effectiveness of a Physical

Multiple Choice

A researcher conducts a study on the effectiveness of a physical activity program in motivating people to engage in physical activity on a long term basis.This researcher tests her participants physical activity levels at four time points: pretest,posttest,six month follow-up,and one year follow-up.Which of the following statistical tests would be most appropriate for the analysis of the data?

A) one-way repeated measures analysis of variance
B) two-way mixed model analysis of variance
C) correlated groups t test
D) independent groups t test