Abstract
Malouff and Schutte (1986) developed a measure of irrational belief intended to be shorter and more content valid than other such measures and reported preliminary evidence of reliability and validity for the measure. The present two studies examined further the validity of the new measure. Study 1 produced evidence of construct validity in that a significant correlation was found between scores on the Malouff & Schutte measure and scores on a measure of hostility, which is a theoretically related construct. Study 2 produced evidence of construct validity in that scores on the Malouff & Schutte measure were found to be correlated with scores on two measures of theoretically related constructs: anxiety and irrational tendencies/beliefs. Study 2 also produced evidence of discriminant validity in that scores on the Malouff & Schutte measure were found to be significantly more highly correlated with scores on the more theoretically similar irrational tendencies/beliefs scale than with scores on the anxiety measure.
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Malouff, J.M., Valdenegro, J. & Schutte, N.S. Further validation of a measure of irrational belief. J Rational-Emot Cognitive-Behav Ther 5, 189–193 (1987). https://doi.org/10.1007/BF01080527
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DOI: https://doi.org/10.1007/BF01080527