Validation of the Portuguese version of the Community Assessment of Psychic Experiences and characterization of psychotic experiences in a Brazilian sample

Taciana C. C. Ragazzi, Rosana Shuhama, Jorge Sinval, Joao Maroco, Fabiana Corsi-Zuelli, Daiane L. da Roza*, Jim van Os, Paulo R. Menezes, Cristina M. Del-Ben

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

2 Citations (Web of Science)

Abstract

Objective: We investigated: i) the reliability and validity of a Brazilian version of the Community Assessment of Psychic Experiences (CAPE), developed to detect and characterize psychotic experiences in the general population; and ii) the association between psychotic experiences, childhood adversity, and cannabis use in a population-based sample.

Methods: We performed factorial analyses and generalized linear models with CAPE scores as the dependent variable in a sample composed of 217 first-episode psychosis patients, 104 unaffected biological siblings, and 319 non-psychotic population-based participants.

Results: After removing seven items from its positive dimension and two items from its negative dimension, a 33-item Brazilian version of the CAPE showed acceptable adjustment indices (confirmatory fit index = 0.895; goodness of fit index = 0.822; parsimony goodness of fit index = 0.761; root mean square error of approximation [RMSEA] = 0.055, p [RMSEA 0.70). Childhood adversity was associated with higher scores in all three dimensions, as well as with total score. Lifetime cannabis use was associated with higher scores only in the positive dimension.

Conclusion: The proposed Brazilian version of the CAPE corroborates the tridimensional approach for assessing psychosis-proneness, and the frequency and severity of psychotic manifestations are distributed as a spectrum in the general population.

Original languageEnglish
Pages (from-to)389-397
Number of pages9
JournalRevista Brasileira de Psiquiatria
Volume42
Issue number4
DOIs
Publication statusPublished - 2020

Keywords

  • Psychotic experience
  • psychometric property
  • general population, cannabis
  • childhood adversity
  • GENERAL-POPULATION
  • CANNABIS USE
  • CHILDHOOD ADVERSITIES
  • CONTINUUM
  • QUESTIONNAIRE
  • METAANALYSIS
  • PERSISTENCE
  • SYMPTOMS
  • DISORDER
  • IMPACT

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