Investigated the effectiveness of modeling procedures alone and complemented by the appropriate rule statement on the production of plurals. Subjects were 20 normal and 20 retarded children who were randomly assigned to one of two learning conditions and who received either affective or informative social reinforcement. (Author/SDH)

We examined some conditions under which a response acquired as a tact might facilitate the establishment of a mand. We taught 3 participants with developmental disabilities to tact the items ranked highest and lowest in a preference assessment and subsequently tested to see if the responses occurred as mands. All participants manded for the highly…

This paper describes an instrument designed to yield quick and reliable data on cognitive processes in classroom interactions; techniques of applying the instrument to classroom situations; findings on the reliability of the instrument; and implications for its uses as a research instrument or, when coupled with the paradigms developed by Nelson,…