Which of the following CANNOT explain any change over time in most of the before-and-after designs?
A)history
B)maturation
C)selection
D)instrumentation

Question

Quizplus · Accepted Answer

Selection cannot explain changes in most before-and-after designs because these designs typically involve the same subjects before and after an intervention, meaning that the composition of the group does not change due to selection processes.

Which of the Following CANNOT Explain Any Change Over Time