This study compared the help-eliciting capacity of 4 helping conditions. Within each condition a male confederate dropped in the path of an oncoming pedestrian either 5 books, 5 coins, a glove (unwittingly), or a book (while the confederate was on crutches). The percentage of subjects helping ranged from 3 to 100, depending on the condition. The…

We examined some conditions under which a response acquired as a tact might facilitate the establishment of a mand. We taught 3 participants with developmental disabilities to tact the items ranked highest and lowest in a preference assessment and subsequently tested to see if the responses occurred as mands. All participants manded for the highly…