Cross-cultural Validation of the 5-Factor Structure of Negative Symptoms in Schizophrenia
Autor: | James M. Gold, Alessandro Rossi, Silvana Galderisi, Brian Kirkpatrick, Mario Maj, Anna Mané, Armida Mucci, Miguel Bernardo, Alessandro Bertolino, Martin Bischof, Matthias Kirschner, Tan Shuping, Emilio Fernandez-Egea, Paola Rocca, Cui Jiefeng, Anthony O. Ahmed, Yao Jing, Matthias N. Hartmann-Riemer, Karoline Schneider, Daniel N. Allen, Stefan Kaiser, Gregory P. Strauss, María Paz García-Portilla |
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Přispěvatelé: | Apollo - University of Cambridge Repository, Ahmed, Anthony O, Kirkpatrick, Brian, Galderisi, Silvana, Mucci, Armida, Rossi, Alessandro, Bertolino, Alessandro, Rocca, Paola, Maj, Mario, Kaiser, Stefan, Bischof, Martin, Hartmann-Riemer, Matthias N, Kirschner, Matthia, Schneider, Karoline, Garcia-Portilla, Maria Paz, Mane, Anna, Bernardo, Miguel, Fernandez-Egea, Emilio, Jiefeng, Cui, Jing, Yao, Shuping, Tan, Gold, James M, Allen, Daniel N, Strauss, Gregory P |
Rok vydání: | 2019 |
Předmět: |
Adult
Cross-Cultural Comparison Male confirmatory factor analysis China Alogia Asociality asociality avolition Hierarchical database model ddc:616.89 03 medical and health sciences 0302 clinical medicine Germany medicine Humans Avolition negative symptoms 5 factors Psychiatric Status Rating Scales blunted affect exploratory factor analysis alogia Anhedonia Brief Negative Symptoms Scale (BNSS) Reproducibility of Results Middle Aged medicine.disease anhedonia Psychiatry and Mental Health Exploratory factor analysis Confirmatory factor analysis United States 030227 psychiatry Psychiatry and Mental health Italy Psychotic Disorders Schizophrenia Spain Female medicine.symptom Psychology Factor Analysis Statistical 030217 neurology & neurosurgery Regular Articles Clinical psychology |
Zdroj: | Schizophrenia Bulletin (2018) |
ISSN: | 0586-7614 |
Popis: | OBJECTIVE: Negative symptoms are currently viewed as having a 2-dimensional structure, with factors reflecting diminished expression (EXP) and motivation and pleasure (MAP). However, several factor-analytic studies suggest that the consensus around a 2-dimensional model is premature. The current study investigated and cross-culturally validated the factorial structure of BNSS-rated negative symptoms across a range of cultures and languages. METHOD: Participants included individuals diagnosed with a psychotic disorder who had been rated on the Brief Negative Symptom Scale (BNSS) from 5 cross-cultural samples, with a total N = 1691. First, exploratory factor analysis was used to extract up to 6 factors from the data. Next, confirmatory factor analysis evaluated the fit of 5 models: (1) a 1-factor model, 2) a 2-factor model with factors of MAP and EXP, 3) a 3-factor model with inner world, external, and alogia factors; 4) a 5-factor model with separate factors for blunted affect, alogia, anhedonia, avolition, and asociality, and 5) a hierarchical model with 2 second-order factors reflecting EXP and MAP, as well as 5 first-order factors reflecting the 5 aforementioned domains. RESULTS: Models with 4 factors or less were mediocre fits to the data. The 5-factor, 6-factor, and the hierarchical second-order 5-factor models provided excellent fit with an edge to the 5-factor model. The 5-factor structure demonstrated invariance across study samples. CONCLUSIONS: Findings support the validity of the 5-factor structure of BNSS-rated negative symptoms across diverse cultures and languages. These findings have important implications for the diagnosis, assessment, and treatment of negative symptoms. |
Databáze: | OpenAIRE |
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