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Báo cáo y học: " Test - retest reliability of two instruments for measuring public attitudes towards persons with mental illness"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Test - retest reliability of two instruments for measuring public attitudes towards persons with mental illness | Svensson et al. BMC Psychiatry 2011 11 11 http www.biomedcentral.com 1471-244X 11 11 BMC Psychiatry RESEARCH ARTICLE Open Access Test - retest reliability of two instruments for measuring public attitudes towards persons with mental illness 1 2 1 15 1 Bengt Svensson Urban Markstrom Ulrika Bejerholm Tommy Bjorkman David Brunt Mona Eklund Lars Hansson1 Christel Leufstadius1 Amanda Lundvik Gyllensten1 Mikael Sandlund3 Margareta Ostman4 Abstract Background Research has identified stigmatization as a major threat to successful treatment of individuals with mental illness. As a consequence several anti-stigma campaigns have been carried out. The results have been discouraging and the field suffers from lack of evidence about interventions that work. There are few reports on psychometric data for instruments used to assess stigma which thus complicates research efforts. The aim of the present study was to investigate test-retest reliability of the Swedish versions of the questionnaires FABI and Changing Minds and to examine the internal consistency of the two instruments. Method Two instruments fear and behavioural intentions FABI and Changing Minds used in earlier studies on public attitudes towards persons with mental illness were translated into Swedish and completed by 51 nursing students on two occasions with an interval of three weeks. Test-retest reliability was calculated by using weighted kappa coefficient and internal consistency using the Cronbach s alpha coefficient. Results Both instruments attain at best moderate test-retest reliability. For the Changing Minds questionnaire almost one fifth 17.9 of the items present poor test-retest reliability and the alpha coefficient for the subscales ranges between 0.19 - 0.46. All of the items in the FABI reach a fair or a moderate agreement between the test and retest and the questionnaire displays a high internal consistency alpha 0.80. Conclusions There is a need for development of psychometrically tested instruments