Articlebronze2018

The dimensionality of suicidal ideation and its clinical implications

Marc Baertschi · Alessandra Costanza · Alessandra Canuto · Kerstin Weber

54 citations0/0 files storedInternational Journal of Methods in Psychiatric Research

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Suicide and Self-Harm Studies Psychometric Methodologies and Testing Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes

Abstract

OBJECTIVES: No consensus has been reached regarding the theoretical dimensions underlying the Scale for Suicide Ideation (SSI) and Beck's Scale for Suicide Ideation (BSI), widely used in research and clinical practice. This undermines the understanding and management of suicidal behavior. METHODS: The factor structure of the SSI and the BSI was investigated in 201 patients visiting the emergency department of the Geneva University Hospital, Switzerland, for suicidal ideation or a suicide attempt. RESULTS: Exploratory factor analyses (EFAs) identified a unique theoretical dimension. Item removal based on analyses of communalities improved the explained part of variance in both scales. A joint factor analysis provided results very similar to those yielded by initial EFAs. CONCLUSIONS: The single factor underlying the SSI and the BSI was composed of items encompassing a construct of suicide desire. Nonretained items corresponded to other elements of suicidal behavior (e.g., plans and preparations regarding the upcoming suicide attempt). These scales could not discriminate between suicide ideators and suicide attempters.

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References

1998The Mini-International Neuropsychiatric Interview (M.I.N.I.): the development and validation of a structured diagnostic psychiatric interview for DSM-IV and ICD-10 1966The Scree Test For The Number Of Factors 2020Best practices in exploratory factor analysis: four recommendations for getting the most from your analysis 1998The Mini-International Neuropsychiatric Interview (M.I.N.I.): the development and validation of a structured diagnostic psychiatric interview for DSM-IV and ICD-10.1999Evaluating the use of exploratory factor analysis in psychological research.1965A Rationale and Test for the Number of Factors in Factor Analysis 2010The interpersonal theory of suicide.1999Sample size in factor analysis.

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2020Demoralization and Its Relationship with Depression and Hopelessness in Suicidal Patients Attending an Emergency Department

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