Evidence map›Paper›PMID 36283045›Full record

ArticleTrends in psychiatry and psychotherapy2024

Adaptation and latent structure of the Brazilian version of the Ego Dissolution Inventory (EDI-BR): an exploratory study.

Bheatrix Bienemann, Marcio S C Longo, Mariana Ridolfi, Marco Multedo, Lucas V M Cruz, Eduardo Schenberg, Luis Fernando Tófoli, Daniel C Mograbi

Registry-linked trialAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Trends in psychiatry and psychotherapy, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07732166 (Changes in Self-awareness Induced by Psychoactive Substances), which is not on this map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

NCT07732166 early_phase1recruitingnot on this mapstarted 2026, after this paper: background citation

Changes in Self-awareness Induced by Psychoactive Substances: an Experimental Study With Psilocybin.

TypeinterventionalSponsorPontifícia Universidade Católica do Rio de JaneiroRan2026 to 2027Enrolled100ConditionsHealthy AdultsArmsPsilocybin (Usona Institute), Niacin 100 mg
3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Bheatrix BienemannDepartamento de Psicologia, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
Marcio S C LongoInstituto de Psiquiatria, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
Mariana RidolfiDepartamento de Psicologia, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
Marco MultedoDepartamento de Psicologia, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
Lucas V M CruzDepartamento de Psicologia, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, Brazil.
Eduardo SchenbergInstituto Phaneros, São Paulo, SP, Brazil.
Luis Fernando TófoliCooperação Interdisciplinar para Pesquisa e Divulgação da Ayahuasca, Faculdade de Ciências Médicas, Universidade Estadual de Campinas, Campinas, SP, Brazil.
Daniel C MograbiDepartamento de Psicologia, Pontifícia Universidade Católica do Rio de Janeiro, Rio de Janeiro, RJ, Brazil. Institute of Psychiatry, Psychology & Neuroscience, King's College London, London, UK.

Funding

Conselho Nacional de Desenvolvimento Científico e TecnológicoCoordenação de Aperfeiçoamento de Pessoal de Nível SuperiorFundação de Amparo à Pesquisa do Estado do Rio de Janeiro
6 · The paper itself

Abstract

objectiveExisting scales that seek to measure alterations in self-experience were developed based on studies conducted in developed countries. Therefore, the aim of this study was to evaluate the psychometric properties of the Ego Dissolution Inventory (EDI) after translating and adapting it for the Brazilian context.

methodsThe measure was translated by two translators fluent in both English and Portuguese, followed by back-translation into English to ensure there was no loss of meaning. The scale was used in an online survey exploring substance use. A total of 528 participants answered the full scale. We calculated the Kaiser-Meyer-Olkin (KMO) measure to evaluate sampling adequacy, then ran exploratory factor analysis (EFAs) to investigate the factor structure of the EDI.

resultsThe scale showed acceptable psychometric properties, with excellent internal consistency and sampling adequacy for factor analysis. Kaiser-Guttman's criteria and Hull's method indicated a three-factor solution, while parallel analysis suggested a two-factor solution. All items showed salient loadings, with two items exhibiting cross-loading. Positive but weak correlations were found between EDI factors 1 and 2 and nature relatedness.

conclusionsThe validated scale showed solid psychometric properties, with potential differences in factor structure in relation to the English version. Considering validation is an ongoing process, it is recommended that studies be conducted comparing ego dissolution scores across distinct substances and different regions of the country.

Indexed as

EgoPsychometricsAdolescentAdultBrazilFactor Analysis, StatisticalFemaleHumansMaleMiddle AgedReproducibility of ResultsTranslatingTranslationsYoung Adultego deathEgo dissolutionhallucinogenspsychedelicspsychometrics

Identifiers

PMID36283045
PMCPMC11332685

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Registered trials

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.