Journal article

PhDGPT: Measuring bias in academic mental health across quantised and uncensored LLMs

Edoardo Sebastiano De Duro, Enrique Taietta, Simon D’Alfonso, Arianna Bentenuto, Giulio Rossetti, Massimo Stella

Information Processing & Management | Elsevier BV | Published : 2027

Open access

Abstract

We investigate bias in academic mental health as reflected by Large Language Models (LLMs). To this aim, we introduce PhDGPT, a synthetic dataset encapsulating the machine psychology of Ph.D. researchers and professors as perceived by OpenAI’s GPT-3.5 and GPT-OSS-20b. The dataset consists of 18,000 data points for each model, comprising 300 iterations repeated across 15 academic events, 2 gender personas, 2 career levels and 42 unique items responses of the Depression, Anxiety, and Stress Scale (DASS-42) across 2 LLMs. The PhDGPT dataset integrates these psychometric scores with their explanations in plain language. This synergy of scores and texts offers a dual, comprehensive perspective on..

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University of Melbourne Researchers