A design in which a single group of participants is measured repeatedly before and after a treatment is a(n)_____ design.
A)experimental
B)correlational
C)single-group time-series
D)posttest only

Question

Quizplus · Accepted Answer

A single-group time-series design involves measuring a single group of participants repeatedly over time, with measurements taken both before and after a treatment is introduced. This design allows for the assessment of the treatment effect within the same group of participants, while also helping to control for individual differences that may impact the results. The other options (A, B, and D) do not involve repeated measures before and after a treatment in the same group, or do not involve a treatment at all.

A Design in Which a Single Group of Participants Is