In the following paper, two experiments are reported based on the relation between adult approvals as conditioned reinforcers and the number of vocal verbal operants, specifically tacts, mands, wh questions, sequelics, and conversational units emitted by children diagnosed with developmental disabilities. In Experiment I, following an experimental…

Explores role of ambiguity in producing verbal conditioning by using two E types and two S types. Six college students were assigned to "crafty Es. Results revealed that certain types of ambiguity increase verbal compliance. (Author)