A set of procedures is offered for assessing interraler reliability and certain aspects of validity of codes in cross‐cultural studies. The method assumes that at least two independent raters have coded more than one trait. Each trait coded by one rater is correlated with each trait coded by a second, and all the codings by a single rater are intercorrelated with each other. The results are presented in a multitrait‐multi‐rater matrix. From this matrix it is possible to determine the interrater reliability and discriminant validity of trails in addition to a higher order concept based on pairs of traits.
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Rohner et al. (1970) studied this question.
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