Pigeons were exposed to a repeated acquisition procedure in which no delays were imposed and rate of responding was relatively high. They also were exposed to conditions in which delays were arranged between trials within chains or between completed chains, and rates of responding were lower. Number of trials, rate of reinforcement, difficulty of…

Four high school students, including one with mild mental retardation and one with learning disabilities, completed a driver education curriculum that used direct instruction and precision teaching by peer tutors. Peer tutoring was associated with immediate increases in correct responding and a simultaneous and rapid deceleration of errors.…