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01-04-2013 | Uitgave 3/2013

Quality of Life Research 3/2013

Psychometric evaluation of the Danish and Swedish Satisfaction with Life Scale in first episode psychosis patients

Tijdschrift:
Quality of Life Research > Uitgave 3/2013
Auteurs:
Jacek Hochwälder, Maria Mattsson, Ragnhild Holmqvist, Johan Cullberg, Bent Rosenbaum

Abstract

Purpose

To psychometrically evaluate the Satisfaction with Life Scale in two cohorts of first-episode psychosis patients in the Danish National Schizophrenia Project and in the Swedish Parachute Project.

Method

Four properties of the Satisfaction with Life Scale were examined in the Danish cohort (explorative investigation) and then confirmed in the Swedish cohort: (1) the factor structure; (2) correlations between subscales; (3) internal consistencies of subscales; and (4) main tendencies (arithmetic means) and variations (standard deviations) of subscales. The relations between the Satisfaction with Life Scale and various life conditions were investigated in the Swedish cohort.

Results

For both samples, the analysis indicated that the obtained four-dimensional 11-item scale had satisfactory properties. Moderately high scores were obtained in the four subscales: “living,” “social relationships,” “self and present life” and “work.” They correlated positively with each other, the internal consistencies of the subscales were acceptable and the means for the subscales indicated no apparent floor or ceiling effects. The four dimensions obtained seem relevant and presented good face validity. The dimensions were confirmed in the Swedish sample.

Conclusion

The Satisfaction with Life Scale shows satisfactory psychometric properties and seems valid and useful among first-episode psychosis patients.

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