Question

One difference between a repeated-measures design and a matched-samples design is that ______. Group of answer choices a.only one design is a type of related-sample design. b. only one design eliminates between-persons variability. c. only one design involves observing the same participants in each group. d. only one design increases the power to observe an effect.

Answer 1

c). only one design involves observing the same participants in each group

Step-by-step explanation:

A repeated-measures design differs with a matched-samples design in away that only on design involves observing the same participants in each group.

Option a). is wrong because both the matched-samples design as well as a repeated-measures design are grouped together under related-sample design.

Option b). is wrong because both the repeated-measures design and the matched-samples design eliminates between-persons variability. However one does better than the other.

Option d). is wrong because both the designs increases the power to observe an effect.

Hence the correct option is ---

c). only one design involves observing the same participants in each group