Two studies examined the effects of outcome uncertainty (H), intensity, and delay on S's preference for information over no-information. Ss were instructed to depress either an information or no-information key on each of 60 trials prior to the scheduled occurrence of one of several possible (positive, neutral, mildly negative, strongly negative) outcomes. An information choice resulted in an outcome-correlated signal 0, 10, or 15 sec. prior to the outcome. Although unable to affect overtly application of the outcome when informed, S's preference for information increased with uncertainty but only limited effects of outcome intensity and delay were found.
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