The investigation concerns the development and evaluation of an Instrument Reading Training Course intended to provide Group IV personnel with a practical job skill which could enhance their utility in the fleet. Thirteen classes of trainees (total N=188) completed the short Instrument Reading Course under several different instructional formats. The relative effectiveness of the various training methods was determined by comparing achievement data obtained from pre- and post-training written instrument reading tests. The course was successful in training Group IV personnel to read Navy measurement devices at a skill level approximating that of experienced non-group IV men. In this study the most effective method for training Group IV personnel in instrument reading utilized self-study workbooks which contained both instructional material and proactice worksheets. (Author)