title: The multielement baseline design: the missing link in behavioral research and teaching in the motor performance of the mentally retarded.
mesh_terms: D001519:Behavior; D004495:Education of Persons with Intellectual Disabilities / Q000379:methods; D006801:Humans; D008607:Intellectual Disability / Q000534:rehabilitation*; D009048:Motor Skills; D010806:Physical Education and Training / Q000379:methods; D012106:Research; D014481:United States