The five language goals of the program (ordered in terms of complexity) are: Echoes (to facilitate the use of imitation); Mands (to facilitate the use of verbal behaviors that produce an immediate effect on the environment, such as having a request reinforced); Tacts (to facilitate the use of verbal labels); Reception by feature, function and class (RFFC
, to improve the use of verbal behaviors made in response to common verbal stimuli, such as written words); and Intraverbals (to improve the use of non-echoic verbal responses that occur in response to the verbal behavior of others, such as conversation).
For instance, receptive language includes behavior such as nonverbally identifying objects, actions, persons, and locations or nonverbally identifying objects based on their functions, features, or categorical class (RFFC
, Sundberg & Partington, 1998).
For example, in a verbal behavior program if the program changes from a simple tacting program to one where the child is being taught to identify the function, feature or class of items (RFFC
programs) the paraprofessional may not be fluent in the new protocol.