Can LLMs Assess Personality? Validating Conversational AI for Trait Profiling

Fuente: arXiv
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Autores principales: Matšenas, Andrius, Lello, Anet, Lees, Tõnis, Peep, Hans, Tamm, Kim Lilii
Formato: Preprint
Publicado: 2026
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author Matšenas, Andrius
Lello, Anet
Lees, Tõnis
Peep, Hans
Tamm, Kim Lilii
author_facet Matšenas, Andrius
Lello, Anet
Lees, Tõnis
Peep, Hans
Tamm, Kim Lilii
contents This study validates Large Language Models (LLMs) as a dynamic alternative to questionnaire-based personality assessment. Using a within-subjects experiment (N=33), we compared Big Five personality scores derived from guided LLM conversations against the gold-standard IPIP-50 questionnaire, while also measuring user-perceived accuracy. Results indicate moderate convergent validity (r=0.38-0.58), with Conscientiousness, Openness, and Neuroticism scores statistically equivalent between methods. Agreeableness and Extraversion showed significant differences, suggesting trait-specific calibration is needed. Notably, participants rated LLM-generated profiles as equally accurate as traditional questionnaire results. These findings suggest conversational AI offers a promising new approach to traditional psychometrics.
format Preprint
id arxiv_https___arxiv_org_abs_2602_15848
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Can LLMs Assess Personality? Validating Conversational AI for Trait Profiling
Matšenas, Andrius
Lello, Anet
Lees, Tõnis
Peep, Hans
Tamm, Kim Lilii
Computation and Language
Artificial Intelligence
I.2.4; I.2.1; J.4
This study validates Large Language Models (LLMs) as a dynamic alternative to questionnaire-based personality assessment. Using a within-subjects experiment (N=33), we compared Big Five personality scores derived from guided LLM conversations against the gold-standard IPIP-50 questionnaire, while also measuring user-perceived accuracy. Results indicate moderate convergent validity (r=0.38-0.58), with Conscientiousness, Openness, and Neuroticism scores statistically equivalent between methods. Agreeableness and Extraversion showed significant differences, suggesting trait-specific calibration is needed. Notably, participants rated LLM-generated profiles as equally accurate as traditional questionnaire results. These findings suggest conversational AI offers a promising new approach to traditional psychometrics.
title Can LLMs Assess Personality? Validating Conversational AI for Trait Profiling
topic Computation and Language
Artificial Intelligence
I.2.4; I.2.1; J.4
url https://arxiv.org/abs/2602.15848