“…During his career, Don published over 200 journal articles, chapters, and books on the behavior analysis of human development.2 He and his students conducted some of the earliest empirical research on imitation and language development from a behavioral perspective, with both typically developing children and people with developmental disabilities (Baer, Guess, & Sherman, 1972;Baer, Peterson, & Sherman, 1967;Baer & Sherman, 1964;Garcia, Baer, & Firestone, 1971; Guess, Sailor, & Baer, 1974Sherman, Clark, & Kelly, 1977). Other research topics included diverse areas such as stimulus control (Baer & Pinkston, 1997), self-instruction (e.g., Grote, Rosales, Morrison, Royer, & Baer, 1997), and creativity (e.g., Goetz & Baer, 1973). Don and his students published papers on research design (e.g., Parsonson & Baer, 1978), generalization from training (e.g., Stokes & Baer, 1977), and child advocacy (Budd & Baer, 1976).3 All had as their 2 A more thorough bibliography of Don's work and honors is available from Don's colleague, Edward K. Morris, at the above address.…”