A new questionnaire assessing the opinions of the relatives of patients with schizophrenia on the causes and social consequences of the disorder: reliability and validity
L. Magliano et al., A new questionnaire assessing the opinions of the relatives of patients with schizophrenia on the causes and social consequences of the disorder: reliability and validity, EUR PSYCHIA, 14(2), 1999, pp. 71-75
This paper describes the development and the validation of a questionnaire
assessing the opinions of the relatives of patients with schizophrenia on t
he causes and the social consequences of the disorder. The final Version of
the questionnaire includes 28 items, grouped in four sub-scales (social re
strictions, social distance, utility of treatments, biopsychosocial causes
of schizophrenia), whose intra-rater reliability ranges from 0.36 to 0.84.
Cronbach's alpha coefficient, which tests the content validity of the sub-s
cales, ranges from 0.56 to 0.66. Factor analysis identifies two factors (op
inions an social consequences and the utility of treatments, and the belief
s on the causes of schizophrenia), which account for the 73% of the total v
ariance. This questionnaire may be particularly useful to assess relatives'
beliefs about schizophrenia and to target psychosocial interventions in th
e families of patients with schizophrenia. (C) 1999 Elsevier, Paris.