Using the notion of a generalized proximity function comparison discussed by Hubert (1978), alternative indices are proposed for evaluating correlational pattern within a multitrait‐multimethod matrix. The measures that are presented and the inference paradigm based on random sampling only require the ordering of the correlations in the given multitrait‐multimethod matrix; consequently, they complement the original Campbell‐Fiske emphasis on ordinal comparison when assessing convergent and discriminant validity.
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Hubert et al. (1979) studied this question.