Match the approach being described to establish validity.

You have a scale measure of perceived threat relative to vaping. You give this to 200 teens. Four years latter you re-contact each teen and determine that those scoring high on this measure (i.e., the perceived health threat of vaping is high) are far more likely to have tried vaping, compared to those scoring low on this measure.

a- Predictive criterion validity b- Concurrent criterion validity c- Multi-trait, multi-method matrix d- Divergent construct validity

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