A highly reliable Likert‐type summated rating scale was constructed to measure attitude toward organ transplantation, judged to be a contemporary topic with ambiguous normative guidelines. Subsequently, a sample of subjects was presented the opportunity to sign a legal document providing for posthumous donation of their organs. Responses to the criterion situation provided an eight‐point Guttman scale of commitment behavior. There was a substantial relationship between attitude scores and criterion behavior as expressed in a Pearson correlation coefficient of .58.
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Goodmonson et al. (1971) studied this question.
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