Performance feedback is one of the most widely used tools in organizational settings. To date, little research has been conducted focusing on comparisons of the differential effects of the sources, frequency, or media used for feedback on both the quality and quantity of performance. This research investigated the effects of different feedback sources for performance (peer vs. supervisor) on quality and quantity (separate and combined) of typing performance. The source of feedback did not differentially influence performance, although this result may have been due to a failure to establish a clear distinction between the two roles. Feedback, compared to no feedback, increased the targeted typing performance significantly. Feedback for accuracy of performance yielded the largest overall results.