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.In this study the independent variable is _____ and the dependent variable is_____.

A) amount of physical activity;time of test/assessment
B) the pretest;the posttest and two follow-ups
C) time of test/assessment;amount of physical activity
D) motivation;time of test/assessment