A STUDY OF FACTORS INFLUENCING THE JUDGMENT OF HUMAN PERFORMANCE THE INFLUENCE OF UNUSUAL PERFORMANCE AND TIME-ORDER ON PERFORMANCE JUDGMENT

摘要

This was a study of the effects of the occurrence of an unusual performance and of time-order on the Judgment of a sequence of performances.nSilent, color movies were made of six male operators performing a simple reaction-time task. The operators had been thoroughly practiced until they could deliberately manipulate their mean reaction times (MRT). Three oper¬ators were used as "anchoring performers" to Illustrate the top, bottom, and middle performance levels of a rating scale. The other three, operators A, B, and C, each performed five l-mlnute trials. A and C produced relatively constant performance levels (MRT = 1.46 sec). Operator B, however, had one unusually "good" trial or he had one unusually "poor" trial. The four remaining trials were such that his overall MRT was also 1.46 seconds.