This investigation evaluated the use of conditional discrimination (CD) instruction and multiple exemplar instruction (MEI) to establish derived relational responding in accordance with hierarchical frames with school aged children. The first experiment used a multiple probe design to evaluate the effectiveness of MEI to teach participants to…

Two boys, ages 7 and 9, with severe developmental disabilities were taught to use requests conditionally (when desired items were proximally distant) to obtain desired snack items. Results suggest that the conditioned discriminations were established quickly and both learners generalized their conditional discriminations to other contexts.…