Sequence errors may be reduced by allowing students to perform a chained task in any functional order. This study, involving four elementary-aged students with moderate intellectual disabilities, found that tasks taught with functional procedures were acquired in fewer sessions, in less time, and with fewer errors than tasks taught in a specific…

This paper discusses guidelines for devising a hierarchy when fading response prompts in training individuals with developmental disabilities. Existing guidelines are seen as poorly defined, inconsistent, and lacking both theoretical and experimental support. An alternative theoretical account is proposed which suggests that prompts in a hierarchy…