A Reanalysis of Two Scales of Tolerance of Ambiguity

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Abstract
Important reviews of the tolerance of ambiguity literature have shown that the concept has become overextended and its elements remain unsupported by the confused data collected, and scales with inadequate psychometric performance have been used. In the present study 631 subjects responded to Budner's (1962) test of Intolerance of Ambiguity and MacDonald's (1970) revision of Rydell and Rosen's (1966) Tolerance of Ambiguity Scale. These scales were chosen because they seemed somewhat less suspect than others. Tests of other personality dimensions which the literature reviews suggested were likely correlates of intolerance of ambiguity were also included. Initial results were uneven and inconclusive. After using item analysis to reduce the tests, more logical and consistent results were obtained. These help to clarify the concept, differentiating sharply between its supposed primary and secondary elements. Three studies in which the reduced tests were used with desirable results are reported.

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