Abstract
To investigate the effect of feedback on performance of the Rod-and-frame Test the standard test procedure was altered. The result of the alteration was a procedure which was called the Rod-and-frame Test as a Learning Task. On this task the subject has to adjust the rod to the vertical twice in succession from each tilting position, whereby he is permitted a maximum of 10 trials in each tilting position and a range of tolerance of ±1°. After each trial the subject is given feedback about his performance. An experiment was conducted with 30 male and 30 female students to investigate whether a precise feedback giving both the direction and the degree of the rod's deviation from the vertical is more effective in reducing frame-dependence than a general feedback which states only the direction of deviation. The data were analyzed via analysis of variance with repeated measures on one factor. The results indicated a gradual improvement under precise feedback conditions for both men and women but under global feedback conditions only women improved their performance.
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