Abstract
Six Ss performed a self-paced, random-input, discrete tracking task in one and two dimensions by quickly touching well-defined lighted areas with a stylus. An index of task difficulty was computed for each of 14 experimental conditions. Performance in terms of information-processing rate was shown to be primarily determined by the degree of task difficulty and the number of target alternatives.
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References
Fitts, P. M., & Peterson, J. R. Information capacity of discrete motor responses. J. exp. Psychol., 1964, 67, 103–112.
Klemmer, E. T. Discrete tracking in one and two dimensions. Operational Applications Laboratory, Air Force Cambridge Research Center, USAF Rep. AFCRC-TN-56-2, 1956.
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Baty, D.L. The role of task difficulty in a discrete tracking task. Psychon Sci 7, 283–284 (1967). https://doi.org/10.3758/BF03328561
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DOI: https://doi.org/10.3758/BF03328561