Match each choice on the left with the impact it would have on power listed on t
ID: 3066606 • Letter: M
Question
Match each choice on the left with the impact it would have on power listed on the right. With n 20 participants, choosing to conduct a repeated-measures design instead of a between-subjects design. Increase power When conducting a matched-subjects design, choosing to use n 10 participants instead of n 30 participants. Increase power When using a related-samples t test and Decrease power choosing alpha .001 instead of alpha 05 When conducting a between-subjects design and recruiting a highly diverse (i.e. heterogeneous) sample instead of a homogeneous sample Decrease power
Explanation / Answer
1. Correct, repeated measures design are more powerful that between subject designs
2. Looks wrong. It should decrease power. As sample size decreases, power of a test decreases
3.Correct. As significance level decreases power decreases
4. Correct. Homogeneous samples are generally more powerful
If any doubt occurs, comment.