A mediator-guided LLM simulation selects survey items whose virtual convergent validity matches human ground truth better than random or LLM-judge baselines.
b) Discriminant validity - the degree to which the item does not substantially measure traits other than the target trait
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Psychometric Item Validation Using Virtual Respondents with Trait-Response Mediators
A mediator-guided LLM simulation selects survey items whose virtual convergent validity matches human ground truth better than random or LLM-judge baselines.