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Simple auditory RT was measured in relation to 6 levels of stimulus intensity (55, 60, 65, 70, 75, and 85 db) and 2 variations of regular preparatory intervals (0.5 and 6.0 sec.). The results showed the louder the stimulus, the quicker the RT; more equivocally, and to a lesser extent, as stimulus intensity decreases, the role of preparatory interval increases. These results were discussed in terms of the factors set and sensation.
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Botwinick et al. (1972) studied this question.
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