TABLE 2.
Validity type | Definition |
---|---|
Criterion-related validity | Correlation between outcomes of the assessment tool and defined criteria indicative of the ability being tested |
Content validity | Extent to which the assessment method covers the subject matter |
Construct validity | Ability of an assessment to evaluate traits that cannot be directly measured |
Unitary concept of validity | Conclusions of assessments are judged for validity rather than the assessment tools themselves. Content validity serves as evidence of the subject matter, and criterion-related validity serves as evidence of relationship to other variables. |