Discriminant validity is said to exist when:
A) significant correlations exist between instruments that measure the same construct.
B) correlations cannot be made between instruments that measure the same construct.
C) the correlations of measures of different constructs are smaller than correlations of measures of the same construct.
D) the correlations of measures of different constructs are larger than correlations of measures of the same construct.

Question

Quizplus · Accepted Answer

Discriminant validity refers to the ability of an instrument to distinguish between different constructs. It is demonstrated by showing that the correlations between measures of different constructs are smaller than the correlations between measures of the same construct. Option A is incorrect because significant correlations between instruments measuring the same construct indicate convergent validity, not discriminant validity. Option B is incorrect because if correlations cannot be made between instruments measuring the same construct, it would indicate poor reliability rather than discriminant validity. Option D is incorrect because larger correlations between measures of different constructs would indicate poor discriminant validity.

Discriminant Validity Is Said to Exist When