QLiS-SF: Development of a short form of the quality of life in schizophrenia questionnaireReportar como inadecuado

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BMC Psychiatry

, 17:149

Social psychiatry, therapy and provision of mental health care


BackgroundThere is a need for useful standardized Quality of Life QoL measures for people diagnosed with schizophrenia. Therefore, a short form of the self-administered Quality of Life in Schizophrenia QLiS scale was developed and validated.

MethodsFour steps were taken to develop the abridged version using samples from the Clinical Analysis of the Treatment of Schizophrenia CATS study. Firstly, a model with second order scales was developed using exploratory factor analysis EFA. Secondly, it was tested in an independent sample using confirmatory factor analysis CFA. Thirdly, this model served as the basis for selecting items for the short form. Distributional properties, content reviews, and factor loadings were taken into account in this step. Fourthly, the resulting short form was validated through confirmatory factor analysis CFA. Composite reliability scores were calculated for the new subscales.

ResultsThree second order scales were constructed: illness-related quality of life QoL, social life and finances, and global subjective well-being. CFA of the new theoretical model resulted in a CFI of 0.67 and absolute fit indices of CMIN-df = 2.55, RMSEA = 0.08, SRMR = 0.09. The selected 13 items showed good statistical properties and good fit of content to subscale. Fit of the underlying theoretical model with the reduced number of items was tested in an independent sample. Absolute and fit indices of the short form model were satisfactory CFI = 0.95, CMIN-df = 2.23, RMSEA = 0.06, SRMR = 0.04. Composite reliability scores for three subscales were above 0.70.

ConclusionsThe short form of the QLIS QLiS-SF showed good model fit and reliability. It should only be considered for use if the application of the long version is not suitable.

KeywordsSchizophrenia Quality of life Short form AbbreviationsCATSClinical Analysis of the Treatment of Schizophrenia

CFAConfirmatory Factor Analysis

EFAExploratory Factor Analysis

QLiSQuality of Life in Schizophrenia

QLiS-SFQualify of Life in Schizophrenia – Short Form

QoLQuality of Life

Electronic supplementary materialThe online version of this article doi:10.1186-s12888-017-1307-1 contains supplementary material, which is available to authorized users.

Autor: T. Senin - M. Franz - M. Deuschle - N. Bergemann - J. Kammerer-Ciernioch - M. Lautenschlager - T. Meyer

Fuente: https://link.springer.com/


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