Prodromal questionnaire (PQ‐16) dimensionality among Colombian adolescent school students

Aims The study aimed to determine the dimensionality of the Spanish version of the PQ‐16 among Colombian adolescent school students. Methods A validation study was designed with the participation of 334 Colombian adolescent students aged between 13 and 17 (M = 15.2, SD = 1.1); 171 (52.1%) were girls...

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Bibliographic Details
Published in:Early intervention in psychiatry 2024-12, Vol.18 (12), p.1008-1014
Main Authors: Campo‐Arias, Adalberto, Herazo, Edwin, Caballero‐Domínguez, Carmen Cecilia
Format: Article
Language:English
Subjects:
Adolescent
Adolescents
Colombia
Correlation
dimensionality
Discriminant analysis
Factor analysis
Factor Analysis, Statistical
Female
Humans
Male
Prodromal Symptoms
Psychometrics
Reproducibility of Results
schizophrenia
screening
Students
Students - psychology
Students - statistics & numerical data
Suicidal Ideation
Surveys and Questionnaires
Citations: Items that this one cites
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Summary:Aims The study aimed to determine the dimensionality of the Spanish version of the PQ‐16 among Colombian adolescent school students. Methods A validation study was designed with the participation of 334 Colombian adolescent students aged between 13 and 17 (M = 15.2, SD = 1.1); 171 (52.1%) were girls, and 163 (47.9%) were boys, 229 (68.6%) were ninth‐grade students and 105 (31.4%) were tenth‐grade students. Confirmatory factor analysis was performed, internal consistency was calculated with the Kuder‐Richardson and McDonald's omega tests, and correlation with suicide ideation was computed with the Kendall correlation (r). Results The confirmatory factor analysis showed that the PQ‐16 adequately fit a unidimensional structure: RMSEA = 0.05 (90%CI 0.04‐0.06), CFI = 0.91, TLI = 0.90, SRMR = 0.05, chi‐squared = 193.18 (df = 102, p < 0.001) and normalized chi‐squared = 1.89. This factor presented high internal consistency: Kuder‐Richardson test and McDonald's omega of 0.83. The correlation between the PQ‐16 and suicide ideation was r = 0.45 (p < 0.001). Conclusion The PQ‐16 is a one‐dimensional tool with high internal consistency and correlation with suicide ideation among schooled adolescents. Further research should explore the PQ‐16 performance against a structured clinical interview.
ISSN:1751-7885
1751-7893
1751-7893
DOI:10.1111/eip.13546