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Content validity
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<p>In <a href="/facts/Psychometrics/56X26MDI">psychometrics</a>, content validity (also known as logical validity) refers to the extent to which a measure represents all facets of a given construct. For example, a <a href="/facts/Depression_(mood)/GDNFWm1L">depression</a> scale may lack content validity if it only assesses the <a href="/facts/Affective/jEQ6IWSm">affective</a> dimension of depression but fails to take into account the <a href="/facts/Behavioral/0Y1VqmVX">behavioral</a> dimension. An element of subjectivity exists in relation to determining content validity, which requires a degree of agreement about what a particular <a href="/facts/Personality_trait/Iun5UFdX">personality trait</a> such as <a href="/facts/Extraversion/MUQ9pRhe">extraversion</a> represents. A disagreement about a personality trait will prevent the gain of a high content validity. </p>