The time curves are more fluctuating than the error curves. These same factors affect the results here also. Accuracy, however, was made much more the goal in these tests than speed, so that reductions in the identification time are more or less incidental. The correlations between the average time per trial and the average error for each of these five observers are negligible. The correlation between the size of the error per note and the time per response for one observer is zero. On the whole the time for incorrect responses is slightly longer than that for correct responses.