9) A psychologist wants to test a new diet and exercise program. One group serve
ID: 3157968 • Letter: 9
Question
9) A psychologist wants to test a new diet and exercise program. One group serves as a control group and receives no treatment. A second group exercises only. A third group diets only and the fourth group uses diet and exercise. Weight is measured before and after treatment.
Which statistical test is most appropriate?
10) I want to know if you learned anything this semester. I can compare your pretest scores to your final exam (posttest) scores to determine if the scores improved.
What is the independent variable(s)?
11) I want to know if you learned anything this semester. I can compare your pretest scores to your final exam (posttest) scores to determine if the scores improved.
What is the dependent variable?
12) I want to know if you learned anything this semester. I can compare your pretest scores to your final exam (posttest) scores to determine if the scores improved.
Which statistical test is most appropriate?
Explanation / Answer
9)
Which statistical test is most appropriate?
matched paired t test because we have a sample with before and after the treatment
10)
independent variable will be pretest scores
11) depdent variable : final exam socres
12)
correlation test
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