Translation and Initial Psychometric Evaluation of Spanish Versions of Three Psychedelic Acute Effects Measures: Mystical, Challenging, and Insight Experiences
Christopher Timmermann, Aki Nikolaidis, Alan K. Davis, Ana María Ortiz Bernal, Rafael Lancelotta, Sandeep M. Nayak, Nathan D. Sepeda, Roland R. Griffiths
Journal of Psychoactive Drugs July 14, 2023 DOI: 10.1080/02791072.2023.2232379 (opens in new tab)
Study at a glance
AI-extracted from the abstract| Characteristics | Cross-sectional survey Peer reviewed |
|---|---|
| Sample size | 442 |
| Population | Native Spanish-speaking adults with prior psychedelic experience |
| Topics | Psilocybin Mystical experience |
| Keywords | Confirmatory factor analysis Clinical psychology Prosocial behavior Construct validity Psychometrics Hallucinogen Developmental psychology |
| Citations | 4 |
| Key findings | Spanish versions of the MEQ, PIQ, and CEQ demonstrated good psychometric properties and construct validity in a sample of 442 native Spanish speakers. |
Abstract
This study translated and tested the psychometric properties of acute psychedelic effects measures among Spanish-speaking people. The Psychological Insight Questionnaire (PIQ), Challenging Experiences Questionnaire (CEQ), and Mystical Experiences Questionnaire (MEQ) were translated before being incorporated into a web-based survey. We recruited native Spanish-speakers (N = 442; Mage = 30.8, SD = 10.9; Latino/Latina = 62%; Hispanic = 91.4%; male = 71.5%) to assess their previous experience with one of two psychedelics (LSD = 58.4%; Psilocybin = 41.6%) and their acute and enduring effects. Confirmatory factor analysis (confirming factor structure based on the English version) revealed a good fit for the MEQ, PIQ and the CEQ. Repeating our analysis in each drug subsample revealed consistency in factor structure for each assessment tool. Construct validity was supported by significant positive associations between the PIQ and MEQ, and between the PIQ and MEQ and changes in cognitive fusion and negative associations between changes in prosocial behaviors. As a signal of predictive validity, persisting effects (PEQ) were strongly related to scores on the MEQ and PIQ. Findings demonstrate that the Spanish versions of these measures can be reliably employed in studies of psychedelic use or administration in Spanish-speaking populations.