The German Version of the Satisfaction With Life Scale (SWLS)
Psychometric Properties, Validity, and Population-Based Norms
Abstract
The Satisfaction with Life Scale (SWLS) is the most commonly used measure for life satisfaction. Although there are numerous studies confirming factorial validity, most studies on dimensionality are based on small samples. A controversial debate continues on the factorial invariance across different subgroups. The present study aimed to test psychometric properties, factorial structure, factorial invariance across age and gender, and to deliver population-based norms for the German general population from a large cross-sectional sample of 2519 subjects. Confirmatory factor analyses supported that the scale is one-factorial, even though indications of inhomogeneity of the scale have been detected. Both findings show invariance across the seven age groups and both genders. As indicators of the convergent validity, a positive correlation with social support and negative correlation with depressiveness was shown. Population-based norms are provided to support the application in the context of individual diagnostics.
References
2004). Overview of adult outcomes in pediatric-onset spinal cord injuries: Implications for transition to adulthood. Journal of Spinal Cord Medicine, 27, S98–S106.
(1991). The Satisfaction With Life Scale (SWLS) – Psychometric properties in a nonpsychiatric medical outpatients sample. Personality and Individual Differences, 12, 117–123.
(2003). Satisfaction with Life Scale: Analysis of factorial invariance across sexes. Personality and Individual Differences, 35, 1255–1260.
(2002). Early versus late onset of spinal cord injury among the elderly. Journal of Clinical Psychology in Medical Settings, 9, 219–226.
(2001). A comparison of substance abuse and violence in the prediction of long-term rehabilitation outcomes after traumatic brain injury. Archives of Physical Medicine and Rehabilitation, 82, 571–577.
(1993). Alternative ways of assessing model fit. Newbury Park, CA: Sage.
(2002). Evaluating goodness-of-fit indices for testing measurement invariance. Structural Equation Modeling, 9, 233–255.
(2004). Latent factors in measures of rehabilitation outcomes after traumatic brain injury. Journal of Head Trauma Rehabilitation, 19, 445–448.
(1998). Outcomes in the first 5 years after traumatic brain injury. Archives of Physical Medicine and Rehabilitation, 79, 298–305.
(2007). Treatment efficacy of social communication skills training after traumatic brain injury: A randomized treatment and deferred treatment controlled trial. Archives of Physical Medicine and Rehabilitation, 88, 1561–1573.
(2006). Negative life events, social support and gender difference in depression – A multinational community survey with data from the ODIN study. Social Psychiatry and Psychiatric Epidemiology, 41, 444–451.
(1985). The Satisfaction with Life Scale. Journal of Personality Assessment, 49, 71–75.
(2003). Personality, culture, and subjective well-being: Emotional and cognitive evaluations of life. Annual Review of Psychology, 54, 403–425.
(1993). The relationship between income and subjective well-being – relative or absolute. Social Indicators Research, 28, 195–223.
(2006). What determines well-being in obesity? Associations with BMI, social skills, and social support. Journal of Psychosomatic Research, 60, 219–227.
(1998). Outcomes of Depression International Network (ODIN) – Background, methods and field trials. British Journal of Psychiatry, 172, 359–363.
(2004). A community-based walking trial to improve neighborhood quality of life in older adults: A multilevel analysis. Annals of Behavioral Medicine, 28, 186–194.
(2001). Women’s experience of IVF: A follow-up study. Human Reproduction, 16, 374–383.
(1998). Fit indices in covariance structure modeling: Sensitivity to underparameterized model misspecification. Psychological Methods, 3, 424–453.
(2008). A psychometric evaluation of the Satisfaction with Life Scale in a Swedish nationwide sample of university students. Personality and Individual Differences, 44, 1070–1079.
(1993). Lisrel 8: Structural equation modeling with the SIMPLIS command language. Hillsdale, NJ: Erlbaum.
(2003). ESRD patient quality of life: Symptoms, spiritual beliefs, psychological factors, and ethnicity. American Journal of Kidney Diseases, 42, 713–721.
(2002). Hysterectomy status and life satisfaction in older women. Journal of Women’s Health and Gender-Based Medicine, 11, 181–190.
(2001). The PHQ-9 – Validity of a brief depression severity measure. Journal of General Internal Medicine, 16, 606–613.
(1995). Confirmatory factor-analysis of the Satisfaction with Life Scale – Replication and methodological refinement. Perceptual and Motor Skills, 80, 304–306.
(2004). Confirmatory factor analysis and invariance of an organizational citizenship behavior measure across samples in a Dutch-speaking context. Journal of Occupational and Organizational Psychology, 77, 299–306.
(1996). Discriminant validity of well-being measures. Journal of Personality and Social Psychology, 71, 616–628.
(2004). Impact of psychiatric disorders in the general population: Satisfaction with life and the influence of comorbidity and disorder duration. Social Psychiatry and Psychiatric Epidemiology, 39, 435–441.
(1985). A comparison of some methodologies for the factor analysis of nonnormal Likert variables. British Journal of Mathematical and Statistical Psychology, 38, 171–189.
(1993). The Satisfaction with Life Scale – Psychometric properties in an adolescent sample. Journal of Youth and Adolescence, 22, 125–134.
(2006). The concept of life satisfaction across cultures: An IRT analysis. Journal of Research in Personality, 40, 411–423.
(2002). Measurement equivalence: A comparison of methods based on confirmatory factor analysis and item response theory. Journal of Applied Psychology, 87, 517–529.
(2005). The well-being of aging people living in their own homes. Journal of Environmental Psychology, 25, 231–243.
(2004). Validation of the satisfaction with life scale in a sample of Hong Kong University students. Psychologia, 46, 225–234.
(2003). SWLS – Satisfaction with Life Scale. In , Diagnostische Verfahren zu Lebensqualität und Wohlbefinden (pp. 305–309). Goettingen: Hogrefe.
(1998). Satisfaction With Life Scale: Analysis of factorial invariance, mean structures and reliability. Personality and Individual Differences, 25, 911–916.
(2004). Determinants of quality of life among older people in deprived neighborhoods. Ageing and Society, 24, 793–814.
(1997). Quality of life issues among women with physical disabilities or breast cancer. Archives of Physical Medicine and Rehabilitation, 78, S18–S23.
(2008). A note on the score reliability for the Satisfaction with Life Scale: An RG study. Social Indicators Research, 86, 47–57.
(2008). Life satisfaction in persons with schizophrenia living in the community – Validation of the satisfaction with life scale. Social Indicators Research, 85, 447–460.
(2006). Analysis of factorial invariance across gender in the Taiwan version of the Satisfaction with Life Scale. Personality and Individual Differences, 40, 1259–1268.
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