Initial evaluations of the Head Start program seemed to question program effectiveness. An alternative explanation of the failure to find improvement is that
A)forced matching might have created an unfavorable regression to the mean
B)a selection by history confound probably occurred
C)fade-out effects occurred
D)none of the above - there is general agreement that the program in fact does not work

Question

Quizplus · Accepted Answer

Forced matching might have created an unfavorable regression to the mean, which can obscure the true effects of the program by making it appear less effective than it actually is.

Initial Evaluations of the Head Start Program Seemed to Question