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A comparison of forced-choice response format with the usual Likert-type scale for the 1974 Levenson Locus of Control Scale indicates the alternative Yes/No format is sufficiently similar to be considered. This alternative is significantly correlated ( r = .55 to .77) with the original, for all subscales ( ns = 117 men, 66 women, 17 to 21 yr. old).
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Stanley et al. (1983) studied this question.
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