Thirty years ago, the first experimental demonstration was published showing that educators could improve significant challenging behavior in children with disabilities by replacing these behaviors with forms of communication that served the same purpose, a procedure called functional communication training (FCT). Since the publication of that…

The effects of a presession exposure to attention on responding during subsequent assessment of attention as a reinforcer were evaluated across three behavioral assessments. In each experiment, the children responded differentially within the test condition according to the presence or absence of dense schedule of attention immediately prior to…