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Originalarbeit

Validierung einer Skala zur Erfassung der depressionsbezogenen Selbstwirksamkeitserwartung (DSW)

Published Online:https://doi.org/10.1026/0012-1924/a000287

Zusammenfassung. Erste Befunde indizieren, dass Patientinnen und Patienten mit stark ausgeprägter depressionsbezogener Selbstwirksamkeitserwartung bessere Behandlungsergebnisse erzielen und ein geringeres Rückfallrisiko aufweisen. Bisher existieren jedoch nur englischsprachige validierte Instrumente zur Erfassung des Konstrukts. In der vorliegenden Studie erfolgte eine psychometrische Überprüfung der deutschsprachigen Adaptation (DSW-Skala) der Self-efficacy for Managing Depression Scale (Bush et al., 2001) anhand von N = 377 primärärztlichen Patientinnen und Patienten mit depressiver Symptomatik, die zu Behandlungsbeginn sowie nach 3, 6 und 12 Monaten untersucht wurden. Die Ergebnisse belegten eine gute interne Konsistenz der Skala (Cronbachs α ≥ .85) und akzeptable Retest-Reliabilität (rtt = .63). Die Responsivität der Skala sowie eine vergleichbare Messstruktur über alle Messzeitpunkte hinweg wurden nachgewiesen. Multiple Regressionsanalysen belegten die Vorhersagekraft der DSW-Skala bezüglich der depressiven Symptomatik über 6 Monate. Die Ergebnisse zeigen, dass die DSW-Skala gängige psychometrische Standards erfüllt, sodass die Skala als zeitökonomisches und reliables Messinstrument in der Praxis und Forschung eingesetzt werden kann.


Perceived Self-Efficacy in the Management and Prevention of Depression: German Adaptation and Validation of a Brief Self-Report Measure

Abstract. There are indications that perceived self-efficacy in the management and prevention of depression mediates health outcomes and depressive relapse. To date, however, validated measurements for this construct exist only in English. This study validates the German adaptation (DSW Scale) of the original English Self-efficacy for Managing Depression scale (Bush et al., 2001). The analysis is based on N = 377 primary-care patients with depressive symptoms who completed the DSW Scale at baseline and at 3, 6, and 12 months. The internal consistency was good at all assessments (Cronbach’s α ≥ .85). The retest reliability assessed between baseline and 3 months was satisfactory (rtt = .63). The responsiveness of the scale was confirmed by a two-factorial ANOVA with repeated measurement. The longitudinal measurement invariance confirmed the comparable structure of the data at each assessment. The construct validity of the scale was demonstrated by high correlations with related constructs. Predictive validity assessed by multiple regression analyses showed that the scale significantly predicted depressive symptoms at 6 months. The results demonstrate that the German DSW Scale meets common psychometric standards and presents a time-efficient and reliable measurement for use in clinic and research.

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