Strobel, Maria; Bekk, Magdalena; Spörrle, Matthias (Juli 2008): Criterion validity of the Multidimensional Scale of Irrational Beliefs (MSIB) with respect to anxiety, depression, and life satisfaction. International Congress of Psychology, 20. - 25. July 2008, Berlin, Germany.




Using a sample of 200 participants, this study seeks to establish criterion validity of the Multidimensional Scale of Irrational Beliefs (MSIB), a newly developed, purely cognitive measure of irrational beliefs. As predicted by Rational Emotive Behavior Therapy, scores on the MSIB are correlated highly and positively with scores on Beck’s Depression Inventory and the trait scale of the State-Trait-Anxiety Inventory. Moreover, analyses revealed medium-sized negative correlations with life satisfaction. Each of these relations is shown to be unaffected by age, sex, and social desirability. Differential associations between subdimensions of the MSIB with criteria are discussed regarding the separability of irrationality concepts.