Abstract
Programmed instruction by means of a teaching machine offers an efficient, practical method of meeting the crucial demand for continuing medical education. Of the general practitioners invited to participate in an experimental programmed course on diabetes, approximately one-half responded, and 70 per cent of these completed the project. All who finished the course felt that it was a meaningful review of diabetes, and a majority reported subsequent changes in their diagnostic or treatment practices, or both. They found the teaching machine preferable to other methods of obtaining information.