Personality and Drug Use (PDU)
This observational, naturalistic study (n=1000), conducted by the Psychedelic Data Society (with the Quantified Citizen app), is set to explore the relationship between substance use and personality profiles.
Details
This retrospective, case‑control observational study will survey adults worldwide via a mobile app to assess associations between histories of recreational or therapeutic substance use and current personality profiles.
Personality will be measured using the Big Five Inventory‑44 (BFI) and perceived retrospective changes via a self‑constructed Retrospective Personality Scale (RPS); substance use history is self‑reported and participants will be assigned to exposure groups (psychedelics, stimulants, depressants, cannabinoids, mixed, or substance‑naive).
The remote, anonymous design aims to increase accessibility and diversity; personalised result summaries will be shared with participants for transparency and engagement.