The present experiment investigated the impact of contextually trained discriminations on gambling behavior. Nine recreational slot-machine players were initially exposed to concurrently available computerized slot machines that were each programmed on random-ratio schedules of reinforcement and differed only in color. All participants distributed…

To investigate two measures which have been used to assess children's attention to stimulus dimensions, component selection, and dimension preference, both measures were administered to 38 3 1/2 to 5-year-olds and 20 5- to 6 1/2-year-olds. Seven to ten days after the dimension preference task was given. the component selection measure was…

The effects of making ratings of idea importance, saliency, or textual imagery on story recall was investigated with 180 students (second and sixth grade normal students and mildly mentally retarded adolescents). Ss in eighteen groups attempted to recall a story presented auditorially and in print either before rating on a textual variable…