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Cited by 195Schizophrenia research and treatmentMental Health and PsychiatryPsychometric Methodologies and Testing

The DOI matches its Crossref record; 29 of the 30 references it cites were found in a registry or an index.

Dimensional structure of psychotic symptoms: an item-level analysis of SAPS and SANS symptoms in psychotic disorders

Peralta, Victor, Cuesta, Manuel J·1999·Schizophrenia Research
DOI 10.1016/s0920-9964(99)00003-1
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Abstract

The factor structure of psychotic symptoms as assessed by means of the Scales for the Assessment of Positive and Negative Symptoms (SAPS and SANS) was examined in a sample of 660 psychotic inpatients. Analyses were conducted at item-level. Principal-component analysis (PCA) was used to extract factors, the OBLIMIN procedure to rotate factors, and the eigen value greater-than-one criterion to determine the number of factors. PCA resulted in 11 interpretable factors explaining 64% of the total variance: poverty of affect/speech, thought disorder/inappropriate affect, bizarre delusions, social dysfunction, other delusions, paranoid delusions, bizarre behavior, nonauditory hallucinations, auditory hallucinations, manic thought disorder, and attention. Many of the factors were significantly intercorrelated. A second-order PCA resulted in four second-order factors, the first three roughly corresponding to the well-known psychosis, disorganization and negative dimensions. It is concluded that the factor structure of psychotic symptoms is more complex than is generally acknowledged, and that the dimensions of psychosis, disorganization and negative represent second-order dimensions. The subscale composition of the SAPS and SANS was not supported.

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Crossref · 10.1016/s0920-9964(99)00003-1

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Metadata

Authors
Peralta, V., & Cuesta, M. J.
Affiliations
Hospital Virgen del Camino (ES)
ORCID
Cuesta, Manuel J
Venue
Schizophrenia Research
Publisher
Elsevier BV
Published
1999-07
Volume
38
Issue
1
Pages
13-26
ISSN
0920-9964 (ISSN-L)
DOI
10.1016/s0920-9964(99)00003-1
OpenAlex
W2128351132
Cited by
195
References
30
Citations by year
2026: 1 · 2025: 7 · 2024: 8 · 2023: 4 · 2022: 6 · 2021: 7 · 2020: 8 · 2019: 11 · 2018: 8 · 2017: 6 · 2016: 11 · 2015: 12 · 2014: 10 · 2013: 10 · 2012: 15
FWCI
1.66
Type
journal article
Language
en
Open access
closed
Licence
www.elsevier.com/tdm/userlicense/1.0/ (tdm)
Locations
  • Schizophrenia Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Social Sciences › Arts and Humanities › Philosophy › Mental Health and Psychiatry
  • Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
Keywords
psychotic symptoms, factor structure
MeSH terms
Adult, Delusions, Depression, Factor Analysis, Statistical, Female, Hallucinations, Humans, Male, Middle Aged, Psychiatric Status Rating Scales, Psychometrics, Psychotic Disorders, Schizophrenia, Schizophrenic Psychology, Reproducibility of Results

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