“…Initial efforts focused on the control of speech fluency (Brookshire & Martin, 1967;Brutten & Shoemaker, 1967;Curlee & Perkins, 1968;Flanagan, Goldiamond, & Azrin, 1958;Meyer, 1963;Siegel & Martin, 1965a, 1965b. Subsequent works described the application of behavioral treatments to a variety of speech and language disorders, including impairments of articulation (Baily, Timbers, Phillips, & Wolf,1971;McReynolds, 1966;Mann & Baer, 1971;Sommers, et al, 1966), voice (Shriberg, 1971), and receptive and expressive language (Baer & Guess, 1971;Clark & Sherman, 1975;Kircher, Pear, & Martin, 1971;Lahey, 1971;Sailor, 1971;Sailor & Tackman, 1972;Schumaker & Sherman, 1970;Spindler, 1970;Wheeler & Sulzer, 1970). By the 1970s, ABA was widely accepted as a valued treatment paradigm in the field of speech-language pathology.…”