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Fig. 1: Construct validation process. LLMs are administered two personality tests, pri-
mary and redundant, with the variation injected through a set of descriptive personas,
and item preambles and postambles. The scored tests are passed for the structural
and external validity checks. The LLM exhbits a personality consistent with humans
only when both tests are passed we can conclude construct validity.

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PersonalityTraitsinLargeLanguageModels