Gavin Marshall
AI Psychologist at psychprofile.io
Gavin Marshall is a PhD candidate in Personality Psychology at the University of Groningen, where his research focuses on psychometric validation of personality inventories and the predictive utility of trait-based models in behavioral analytics. His work bridges classical test theory with modern machine-learning approaches to improve the precision of psychological assessment. Deep experience. Intellectual curiosity.
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Recent articles by Gavin Marshall
- Short personality tests: Big Five Inventory (BFI-10) vs BFI-44 — 23% loss, keep full October 26, 2026
- BFI-2 vs BFI-2-S: Checking Facet Reliability Above .70 at 30 Items October 23, 2026
- Medication Routine Adherence: Conscientiousness, 5 Factors—Adhere or Adjust October 20, 2026
- Choosing a Personality Profile: DiSC (four-style model), 0.70 Reliability Floor—Buy or Skip? October 17, 2026
- Judging PHQ-9 criterion validity in U.S. primary care: a bivariate meta-analysis guide October 14, 2026
- Depression Test Score Cutoff: MMPI-2-RF Demoralization at T 65 vs DSM-5-TR Validity October 11, 2026
- Vocational Learning Motivation: Self-Efficacy Across 58 Studies—Predictor or Not? October 8, 2026
- A three-decision record to test maritime response coordination October 4, 2026