Final answer:
Construct validity in psychology: understanding how convergent and discriminant validity contribute to establishing the accuracy of a test in measuring a theoretical construct.
Explanation:
Construct validity refers to how well a test measures the intended theoretical construct. Convergent and discriminant validity play a crucial role in establishing construct validity.
- Convergent validity is shown when different methods of measuring the same concept produce similar results. For example, correlating self-reported substance use with lab test results.
- Discriminant validity demonstrates that a measure does not correlate closely with unrelated constructs. For instance, ensuring that a measure of healthy lifestyle does not strongly correlate with a self-esteem scale.
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