Definition
Validity is a term applied to measuring instruments reflecting the extent to which differences in scores on the measurement reflect true differences among individuals, groups, or situations in the characteristic it seeks to measure—or true differences in the same individual, group, or situation from one occasion to another—rather than constant or random errors.[1]
See also
- Construct validation
- Convergent validity
- Discriminant validity
- External validity
- Face validity
- Internal validity
- Pragmatic validity
References
- ^ American Marketing Association, AMA Dictionary.