Accession Number : AD0690591

Title :   THE ELUSIVE TRADEOFF: SPEED VERSUS ACCURACY IN CHOICE REACTION TASKS WITH CONTINUOUS COST FOR TIME.

Descriptive Note : Technical rept.,

Corporate Author : MICHIGAN UNIV ANN ARBOR HUMAN PERFORMANCE CENTER

Personal Author(s) : Swensson,Richard S.

Report Date : DEC 1968

Pagination or Media Count : 99

Abstract : The study attempted to discover the conditions necessary for a speed-accuracy tradeoff in choice reaction time. The subjects' entire payoff depended on both their accuracy and response time on each trial. Cost for response time was proportional to that time. Session-to-session changes in the payoff difference between a correct response and an error varied the relative attractiveness of speed and accuracy. Experiments varied the emphasis on speed versus accuracy over a wide range, and used a free delay interval that charged subjects only for time exceeding 250msec. Two different versions of the random walk model both fit these empirical tradeoff functions but neither could account for the systematic differences between times for correct responses and errors. (Author)

Descriptors :   (*DECISION MAKING, PERFORMANCE(HUMAN)), (*PERFORMANCE(HUMAN), TIME), ACCURACY, REACTION(PSYCHOLOGY), CORRELATION TECHNIQUES, PSYCHOLOGICAL TESTS, VISUAL SIGNALS, DISPLAY SYSTEMS, STATISTICAL ANALYSIS

Subject Categories : Psychology

Distribution Statement : APPROVED FOR PUBLIC RELEASE