Attempts
Keep the Highest no score out of 3/ 3
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.
They both use the same t statistic.
The researcher must compute a pooled variance to compute a t statistic.
For a repeated-measures experiment comparing two treatment conditions, the t statistic has a df of 11. How many subjects participated in this study?
12
11
22
24
A matched-subjects experiment produced a t statistic with a df of 9. How many subjects participated in this study?
10
9
18
20