The relationship between speed and accuracy in a motor task.

Abstract

Speed and accuracy in three motor tasks of increasing complexity all involving continuous tapping were studied by means of a self-registering apparatus. Analysis of the data shows that the relationship between speed and accuracy in these tasks conforms to the phi-gamma hypothesis. The curve of best fit is an integration of the normal probability curve. Constants are given for 66 curves obtained in the experiment. The closeness of fit of observed values to the theoretical ones was check by Pearson's x2 method, and by his criterion √2 x2 - √2n - 1