A comparison of retarded and nonretarded children on the ability to use context in reading
Curiosity in retarded children: sensitivity to intrinsic and extrinsic reinforcement
Evaluation of a strategy--oriented training program on the verbal abstraction performance of EMRs
Is reinforcement necessary for the development of a generalized imitation operant in severely and profoundly retarded children?
Performance of retarded children on a liquid conservation task: protocol objectivity and visual screening
The effect of three variables on the verbal problem solving of educable mentally handicapped children