Two types of before-and-after experimental designs in which multiple pretest and posttest observations are made of the same group are ______.
A)Solomon four group designs and panel designs
B)panel designs and repeated measures panel designs
C)repeated measures panel designs and time series designs
D)time series designs and nonequivalent control group designs

Question

Quizplus · Accepted Answer

Repeated measures panel designs involve multiple pretest and posttest observations of the same group, while time series designs also involve repeated measures over time. Both designs are within-subjects designs, meaning that the same participants are measured repeatedly throughout the study. None of the other options involve multiple pretest and posttest observations of the same group.

Two Types of Before-And-After Experimental Designs in Which Multiple Pretest