Measurement invariance of the Spanish Launay–Slade Hallucinations Scale‐Extended version between putatively healthy controls and people diagnosed with a mental disorder. Issue 4 (20th September 2018)

• Record Type: Journal Article
• Authors: Siddi, Sara; Ochoa, Susana; Farreny, Aida; Brébion, Gildas; Larøi, Frank; Cuevas‐Esteban, Jorge; Haro, Josep Maria; Stephan‐Otto, Christian; Preti, Antonio
• Is Part Of: International journal of methods in psychiatric research. Volume 27:Issue 4(2018)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2018-09-20
• Subjects: factor analysis -- hallucinatory proneness -- Launay‐Slade Hallucination Scale -- measurement invariance -- sensitivity and specificity analyses; Psychiatry -- Research -- Methodology -- Periodicals; Psychiatry -- Periodicals; 616.890072
• DOI: 10.1002/mpr.1741
• Languages: English
• ISSNs: 1049-8931

Abstract

Abstract: Objectives: The current study aimed at evaluating the reliability, convergent and divergent validity, and factor structure of the Spanish Launay–Slade Hallucinations Scale‐Extended version (LSHS‐E) in people with mental disorders and healthy controls. Methods: Four hundred and twenty‐two individuals completed the Spanish LSHS‐E and the Spanish Community Assessment of Psychic Experiences. The convergent and divergent validity of the LSHS‐E was assessed with the three dimensions of the Community Assessment of Psychic Experiences (positive, negative, and depressive dimensions) in healthy controls and people with a mental disorder. Factor structure of the LSHS‐E was assessed using confirmatory factor analysis and measurement invariance. Results: The LSHS‐E had a good reliability in healthy controls and people with a mental disorder (Cronbach's = 0.83 and 0.91, respectively). The LSHS‐E was more strongly associated with positive psychotic‐like experiences than with depressive and negative symptoms. Four factors were found: (a) "intrusive thoughts"; (b) "vivid daydreams"; (c) "multisensory hallucination‐like experiences"; and (d) "auditory–visual hallucination‐like experiences" that were invariant between the group of healthy controls and people with a mental disorder. Conclusion: The Spanish version of the LSHS‐E possesses adequate psychometric properties, and the confirmatory factor analysis findings provide further support for the multidimensionality of proneness to hallucination in clinical and nonclinical samples.