ERIC Number: ED080554
Record Type: Non-Journal
Publication Date: 1970
Perceived Difficulty of a Motor-Skill Task as a Function of Training.
Bratfisch, Oswald; And Others
A simple device called a "wire labyrinth" was used in an experiment involving learning of a two-hand motor task. The Ss were asked, after completing each of 7 successive trails, to give their estimates of perceived (subjective) difficulty of the task. For this purpose, the psychophysical method of magnitude estimation was used. Time was measured as a criterion of performance. The sevenfold repetition of the task resulted in a drop of performance time from 61 seconds to 35 seconds, i.e., by about 43%, while the perceived difficulty decreased from the initial value of 10 to 5.2, i.e., by 48%. The course of both functions was fairly similar; the correlation coefficient of 0.96 showed a close relationship between perceived difficulty and time. It is suggested that, in the task employed, the estimation of difficulty was mainly based on the perception of time. (Author)
Publication Type: N/A
Education Level: N/A
Sponsor: Tri-Centennial Fund, Stockholm (Sweden).
Authoring Institution: Stockholm Univ. (Sweden). Inst. of Applied Psychology.