This report summarizes the techniques used in gathering and maintaining a data file on most of the Army aviator trainees who have been through the Officer/Warrant Officer Rotary Wing Aviator Course and the Warrant Officer Candidate Course during the period 1 July 1968-31 December 1969. Specific regression analyses dealing with the prediction of student performance in training are furnished, and the methods used to obtain them are described. The equations allow the extrapolation of current training performance to a prediction of (1) the probability that the individual will pass the course, and (2) what his final end-of-course grade will be. A review of the most pertinent literature in the area is included as are frequency counts of a large volume of training data. (Author)