Validity of short forms may be reduced because fewer items:
A) means that the test will not be used as often as the longer form.
B) lowers test utility which negatively impacts validity.
C) means that the test can only be used for screening purposes.
D) lowers test reliability which negatively impacts validity.

Question

Quizplus · Accepted Answer

Short forms of tests usually have fewer items, and this can lead to lower test reliability, which can negatively impact validity. This is because a smaller number of items may not be representative of the construct being measured, leading to greater measurement error. Therefore, D is the best choice as it directly addresses the reduction of validity due to the fewer items in short forms.

Validity of Short Forms May Be Reduced Because Fewer Items