Sören Kliem1, Thomas Mößle2, Florian Rehbein2, Deborah F Hellmann2, Markus Zenger3, Elmar Brähler4. 1. Criminological Research Institute of Lower Saxony, Lützerodestraße 9, 30161 Hannover, Germany. Electronic address: Soeren.Kliem@kfn.de. 2. Criminological Research Institute of Lower Saxony, Lützerodestraße 9, 30161 Hannover, Germany. 3. Department of Medical Psychology and Medical Sociology, University of Leipzig, Ph.-Rosenthal-Str. 55, 04103 Leipzig, Germany. 4. Department of Medical Psychology and Medical Sociology, University of Leipzig, Ph.-Rosenthal-Str. 55, 04103 Leipzig, Germany; Department of Psychosomatic Medicine and Psychotherapy, University of Mainz, Untere Zahlbacher Str. 8, 55131 Mainz, Germany.
Abstract
OBJECTIVES: Development of a brief instrument (F-SozU K-6) for the measurement of perceived social support in epidemiologic contexts by shortening a well-established German questionnaire (F-SozU K-14). STUDY DESIGN AND SETTING: The development of the F-SozU K-6 consisted of two phases; phase 1: the F-SozU K-14 was presented to a general population sample representative for the Federal Republic of Germany (N = 2,007; age: 14-92 years). Six items for the short form were selected based on the maximization of coefficient alpha. Phase 2: the new short form (F-SozU K-6) was evaluated and standardized in an independent second population survey (N = 2,508, age: 14-92 years). RESULTS: The F-SozU K-6 showed very good reliability and excellent model fit indices for the one-dimensional factorial structure of the scale. Furthermore, strict measurement invariance was detected allowing unbiased comparison of means and correlation coefficients and path coefficients between both sexes across the full lifespan from adolescence (14-92 years). Well-established associations of perceived social support with depression and somatic symptoms could be replicated using the short form. CONCLUSION: The F-SozU K-6 presents a reliable, valid, and economical instrument to assess perceived social support and can thus be effectively applied within the frameworks of clinical epidemiologic studies or related areas.
OBJECTIVES: Development of a brief instrument (F-SozU K-6) for the measurement of perceived social support in epidemiologic contexts by shortening a well-established German questionnaire (F-SozU K-14). STUDY DESIGN AND SETTING: The development of the F-SozU K-6 consisted of two phases; phase 1: the F-SozU K-14 was presented to a general population sample representative for the Federal Republic of Germany (N = 2,007; age: 14-92 years). Six items for the short form were selected based on the maximization of coefficient alpha. Phase 2: the new short form (F-SozU K-6) was evaluated and standardized in an independent second population survey (N = 2,508, age: 14-92 years). RESULTS: The F-SozU K-6 showed very good reliability and excellent model fit indices for the one-dimensional factorial structure of the scale. Furthermore, strict measurement invariance was detected allowing unbiased comparison of means and correlation coefficients and path coefficients between both sexes across the full lifespan from adolescence (14-92 years). Well-established associations of perceived social support with depression and somatic symptoms could be replicated using the short form. CONCLUSION: The F-SozU K-6 presents a reliable, valid, and economical instrument to assess perceived social support and can thus be effectively applied within the frameworks of clinical epidemiologic studies or related areas.
Keywords:
Confirmatory Factor Analysis; Measurement invariance; Perceived social support; Psychometrics; Self-report questionnaire; Social Support Questionnaire short form (F-SozU K-6); Standardization
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