Question

3. repeated-measures and matched-subjects experiments repeated-measures experiments measure the same set of research participants two or more times, while matched-subjects experiments study participants who are matched on one or more characteristics. which of the following are true for both a repeated-measures experiment and a matched-subjects experiment when used to compare two treatment conditions? check all that apply. the researcher computes difference scores to compute a t statistic. participants in both types of experiments are all measured the same number of times. the researcher must compute an estimated standard error for the mean difference score to compute a t statistic. if the researcher has n number of participants to use in the experiment, then the degrees of freedom will be the same in a repeated-measures experiment or in a matched-subjects experiment. for a repeated-measures experiment comparing two treatment conditions, the t statistic has a df of 31. how many subjects participated in this study? 64 31 32 62 a matched-subjects experiment produced a t statistic with a df of 13. how many subjects participated in this study? 26 13 14 28

Answer 1

Answer: A. The researcher computes difference scores to compute a t statistic

B. If the researcher has n number of participants to use in the experiment, then the degrees of freedom will be the same in a repeated-measures experiment or in a matched-subjects experiment

C. The researcher must compute an estimated standard error for the mean difference score to compute a t statistic.

D. Participants in both types of experiments are all measured the same number of times

A matched-subjects experiment produced a t statistic with a df of 9. How many subjects participated in this study?

A. 20

B. 10

C. 18

D. 9

For a repeated-measures experiment comparing two treatment conditions, the t statistic has a df of 11. How many subjects participated in this study?

A. 12

B. 22

C. 24

D. 11

Explanation: