__________ is the degree to which a test or assessment instrument evaluate all aspects of the topic, construct, or behaviour that it is designed to measure.

__________ is the degree to which a test or assessment instrument evaluate all aspects of the topic, construct, or behaviour that it is designed to measure.

Explanation

Content Validity refers to the extent to which a measure represents all facets of a given construct.

For example, a depression scale may lack content validity if it only assesses the affective dimension of depression but fails to take into account the behavioral dimension.