This study examined the discriminability of lexigrams versus printed words with eight adults with severe mental retardation. A match-to-sample teaching paradigm was used. Subjects discriminated lexigrams better than printed letters and were more successful at matching lexigrams to referent objects than matching printed words to referent objects.…

Additional support to a stimulus-response (S-R) association by the use of an extraneous stimulus is called "prompting." Prompting has an effect on learner achievement particularly if the prompting agent is identical on successive S-R trials. This experiment sought to analyze the differences in learner achievement when different prompting stimuli…

The research concerned the association of neutral objects, such as nonsense syllables, with rewards, such as money and candy, in children. Thirty-six subjects were obtained from grades two through six of local public elementary schools in Nashville, Tennessee. Associations between neutral objects and rewards were formed in a task concerning…