Two adults with severe mental retardation were assessed for correct pointing responses to line drawings of required eating utensils. Following tact intervention, mands for two of three utensils emerged. Results suggest transfer from tact variables to the conditioned establishing operation may be facilitated by cultivating a minimal mand…

This study assessed the differential effectiveness of two types of response delays on correct responding (with communicative gestures) by three individuals with severe mental handicaps to training instructions. Results showed that response delay was effective in increasing the number of correct responses in two of the three individuals. (DB)

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…