Question

For each example, state whether the one-sample, the two-independent-sample, or the related samples t-test is most appropriate. If it is a related samples t-test, indicate whether the test is a repeated measures design or a matched-pairs design.

1) A researcher matches right-handed and left-handed siblings to test whether right-handed siblings express greater emotional intelligence than left-handed siblings.

A. one-sample t-test

B. two-independent sample t-test

C. related samples t-test using the repeated measures design

D. related samples t-test using the matched-pairs design

2) A professor tests whether students sitting in the front row score higher than students sitting in the back row.

A. one-sample t-test

B. two-independent sample t-test

C. related samples t-test using the repeated measures design

D. related samples t-test using the matched-pairs design

3) A graduate student selects a sample of 25 participants to test whether the average time students attend to a task is greater than 30 minutes.

A. one-sample t-test

B. two-independent sample t-test

C. related samples t-test using the repeated measures design

D. related samples t-test using the matched-pairs design

4) A principal at a local school wants to know how much students gain from being in an honors class. He gives students in an honors English class a test prior to the school year and again at the end of the school year to measure how much students learned during the year.

A. one-sample t-test

B. two-independent sample t-test

C. related samples t-test using the repeated measures design

D. related samples t-test using the matched-pairs design

Answer 1

1)D. related samples t-test using the matched-pairs design

2)B. two-independent sample t-test

3) A. one-sample t-test

4) C. related samples t-test using the repeated measures design