Theoretical background: The Dysfunctional Attitude Scale (DAS) is a measurement tool that is commonly used to detect dysfunctional beliefs contributing to the emergence and onset of depressive symptoms. Although it has been primarily used for testing clinical populations, and various forms of the scale have been created, only a small body of literature has proved its psychometric adequacy on a clinical sample. Goals: Therefore, the current study aims to construct an updated, reliable and brief version of the DAS. Methods: For this purpose, besides the normal samples of adolescents (n = 195) and adults (n = 270), a heterogeneous clinical sample (n = 1077) was involved in cross-sectional research. Results: The overall results of parallel analysis and exploratory factor analysis suggested a bifactor structure with a general factor and three extracted subfactors (Dependence, Perfectionism and Entitlement), comprising 14 items altogether (χ2 = 157.26, DF = 63, p < 0.001, CFI = 0.970, TLI = 0.957, RMSEA = 0.036, RMSEA CI90 = 0.029–0.044). Convergent validity was tested by correlations with Beck Depression Inventory (r = 0.36, p < 0.001). Conclusion: Our study was based on the largest clinical sample in the field of psychometric analysis of the DAS so far. The findings suggest that DAS14 as a brief version of the original DAS has good psychometric properties, and it can be widely used as a measurement tool in the assessment of mood disorders.
Elméleti háttér: A Diszfunkcionális Attitűd Skála (DAS) egy olyan pszichológiai kérdőíves eljárás, amely azon diszfunkcionális hiedelmek mérésére alkalmas, amelyek hozzájárulnak a depresszív tünetek kialakulásához és fennmaradásához. Annak ellenére, hogy már számos változata létezik és elsődleges használati területét a klinikai populáció jelenti, pszichometriai mutatóit klinikai mintán a kutatások szűk köre vizsgálta. Cél: Jelen tanulmány célja a DAS aktualizálása, rövidítése, megbízhatóságának és validitásának vizsgálata. Módszer: Keresztmetszeti kérdőíves vizsgálatunk keretében egészséges serdülő (n = 195) és felnőtt (n = 270) minta mellett heterogén klinikai mintát (n = 1077) alkalmaztunk. Eredmények: A parallelelemzés és a feltáró faktoranalízis eredményei a bifaktoros struktúrát igazolják. A 14 itemre egy általános és három alfaktor (Dependencia, Perfekcionizmus és Elvárások) illeszthető (χ2 = 157,26, DF = 63, p < 0.001; CFI = 0,970; TLI = 0,957; RMSEA = 0,036, RMSEA 90% CI = 0.029 – 0.044). A skála konvergens validitását a Beck Depresszió Kérdőívvel való korrelációja alátámasztja (r = 0,36;p < 0,001). Konklúzió: A DAS pszichometriai vizsgálatai közül ez idáig alkalmazott legnagyobb klinikai elemszámú vizsgálatát mutatja be a ta nulmány. Az eredmények alapján a DAS rövidített változata, a DAS-14 megfelelő pszicho metriai tulajdonságokkal rendelkezik alkalmazható a hangulatzavarok diagnosz tikájában.
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