Lena Spangenberg1, Tobias Teismann2, Thomas Forkmann3, Dajana Rath3, Antje Schönfelder1, Laura Paashaus3, Georg Juckel4, Katarina Stengler5, Heide Glaesmer1. 1. Abteilung für Medizinische Psychologie und Medizinische Soziologie, Universität Leipzig. 2. Abteilung für Klinische Psychologie und Psychotherapie, Ruhr-Universität Bochum. 3. Abteilung für Klinische Psychologie, Universität Duisburg-Essen, Essen. 4. Abteilung für Psychiatrie, LWL-Universitätskrankenhaus, Ruhr-Universität Bochum. 5. Klinik für Psychiatrie, Psychosomatik und Psychotherapie, Helios Park-Klinikum Leipzig.
Abstract
OBJECTIVE: The present study examines dimensionality, reliability and convergent validity of the German Beck Scale for Suicidal Ideation (BSS) in a clinical sample. METHODS: 308 inpatients after suicide attempts/acute suicidality participated in the study (53,6% female). Of those, 224 completed the full BSS and self-report questionnaires assessing depression (DESC), hopelessness (BHS), interpersonal variables (INQ) and defeat (DS-d)/entrapment (ES-d). Dimensionality was investigated by confirmatory factor analysis (CFA, models with 1, 2, 3 and 5 factors) and convergent validity was investigated by correlational analysis (Pearson). RESULTS: In total, the 5-factor model achieved the best fit. Yet, model fit is comparable between all tested models without considering the RMSEA model. The multidimensional models result in similar subscales. Subscales reflecting passive death wishes (α>0,80), active suicidal ideation (α>0,73) and suicide-related behaviors (α>0,70) achieve acceptable internal consistency. The BSS sum score and the subscales assessing passive and active suididal thoughts correlate moderately positive with DESC, BHS, INQ and DS-d/ES-d (r between 0,25 and 0,66) while the behavior-related scale shows smaller (r between 0,14 und 0,27) or no associations (INQ, thwarted belongingness). CONCLUSION: The CFAs do not provide clear evidence for either an uni- or a multidimensional structure of the BSS. In the light of this finding, use of the BSS score is limited despite evidence supporting its reliability and convergent validity. Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, Germany.
OBJECTIVE: The present study examines dimensionality, reliability and convergent validity of the German Beck Scale for Suicidal Ideation (BSS) in a clinical sample. METHODS: 308 inpatients after suicide attempts/acute suicidality participated in the study (53,6% female). Of those, 224 completed the full BSS and self-report questionnaires assessing depression (DESC), hopelessness (BHS), interpersonal variables (INQ) and defeat (DS-d)/entrapment (ES-d). Dimensionality was investigated by confirmatory factor analysis (CFA, models with 1, 2, 3 and 5 factors) and convergent validity was investigated by correlational analysis (Pearson). RESULTS: In total, the 5-factor model achieved the best fit. Yet, model fit is comparable between all tested models without considering the RMSEA model. The multidimensional models result in similar subscales. Subscales reflecting passive death wishes (α>0,80), active suicidal ideation (α>0,73) and suicide-related behaviors (α>0,70) achieve acceptable internal consistency. The BSS sum score and the subscales assessing passive and active suididal thoughts correlate moderately positive with DESC, BHS, INQ and DS-d/ES-d (r between 0,25 and 0,66) while the behavior-related scale shows smaller (r between 0,14 und 0,27) or no associations (INQ, thwarted belongingness). CONCLUSION: The CFAs do not provide clear evidence for either an uni- or a multidimensional structure of the BSS. In the light of this finding, use of the BSS score is limited despite evidence supporting its reliability and convergent validity. Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, Germany.