An exclusive preschool program has strict enrollment criteria and only accepts children with very high marks on the enrollment test. Unfortunately, they have found that the enrollment test does not correlate highly with the grades the children make. The probable reason is
A)predictor/criterion confusion.
B)an invalid criterion.
C)convergent evidence.
D)range restriction.

Question

Quizplus · Accepted Answer

The probable reason is range restriction. Range restriction occurs when the range of scores on a predictor variable (in this case, the enrollment test scores) is limited or restricted, often due to a selection criterion. This can lead to an underestimation of the correlation between the predictor and the criterion variable (here, the grades the children make). Since the preschool only accepts children with very high marks on the enrollment test, the range of test scores among the enrolled children is restricted, which could explain the low correlation between the test scores and the children's grades.

An Exclusive Preschool Program Has Strict Enrollment Criteria and Only