c2 - CHAPTER 2 General Health Questionnaire-28:...

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33 CHAPTER 2 General Health Questionnaire-28: psychometric evaluation of the Slovak version Iveta Nagyova, Boudien Krol, Angela Szilasiova, Roy E. Stewart, Jitse P. van Dijk and Wim J.A. van den Heuvel Studia Psychologica 2000,42,4:351-61 Abstract The EUropean Research on Incapacitating DIseases and Social Support (EURIDISS) is an international longitudinal study focusing on patients with Rheumatoid Arthritis (RA). It elaborates on the impact of the chronic disease on patients’ daily lives. Rheumatoid arthritis, social support and quality of life are the central concepts within the project. Goldberg and Hillier’s 28-item scaled version of the General Health Questionnaire (GHQ-28) has been used to measure the psychological aspect of quality of life. The scale is frequently used in Western Europe, but rarely in Central and Eastern Europe. Slovakia, a Central European country, is joining the EURIDISS project since 1994. Therefore, the question emerged whether the psychometric properties of the Slovak version of the GHQ-28 are adequate in order to measure the psychological component of quality of life. In the present study the reliability and the validity of the GHQ-28 in Slovak RA-patients are evaluated and the outcomes are discussed in the light of Western European (WE) results. The study examines the internal consistency and the factor structure of the instrument. In general, as far as the reliability Fgures and the intercorrelations of the scales are concerned, the results indicate that the psychometric qualities of the GHQ-28 in Slovakia are satisfactory. However, when taking into consideration the factor structure of the scale, as pointed out by Principal Component Analysis, this reveals several differences. At least six out of the twenty- eight items appear to Ft better to another subscale than originally was found. Especially, general health ratings, such as ‘felt recently ill’, initially attributed to subscale somatic symptoms, appear to be more closely associated with subscale anxiety/insomnia. More research on GHQ-28 in Central European countries is therefore recommended.
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34 CHAPTER 2 Introduction By the end of 1990 started a longitudinal study on Rheumatoid Arthritis (RA) patients, the EURIDISS project. The study concentrates on the course and consequences of this chronic disease on patients’ everyday lives. The research project describes the way people cope with their incapacitating disease and the role of psychosocial factors in this coping process. The study started in Western Europe, and in 1994 it was expanded to Central Europe, and in particular to Slovakia. Currently, the project participants are France, Germany, the Netherlands, the United Kingdom, Norway, Slovakia and Sweden. Quality of life is considered as an important outcome variable within the project (EURIDISS 1990). According to the literature the concept ‘quality of life’ comprises several dimensions (Spilker 1990, Krol et al. 1993, Doeglas 2000). The most commonly
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This note was uploaded on 09/26/2011 for the course PSYCHOLOGY 110 taught by Professor Kannan during the Spring '11 term at Anna University.

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c2 - CHAPTER 2 General Health Questionnaire-28:...

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