The present paper is a reply to the comments of Odor (1988) and Aitken (1988) on the present authors' study concerning a computer-aided programme for low-functioning persons (Lancioni & Oliva, 1988). The research problem and the objectives of the study will be restated first. Subsequently, a series of issues on which Odor and Aitken have commented will be addressed. These issues include the activities presented to the subjects, the characteristics of the computer system, the differences between computer and card systems, intrinsic motivation and external reinforcement, the kind of subjects who can benefit from the computer system, and ethical aspects.