Heitman R J, Justen J E, Gilley W F
Am J Ment Defic. 1980 Sep;85(2):200-2.
The effects of mental age (MA), knowledge of results, and social reinforcement on performance on a speed motor task by mildly mentally retarded children was investigated. Significant main effects were found for the variables of MA and social reinforcement and significant interactions for the MA x Social-Reinforcement conditions and the Knowledge of Results x Social-Reinforcement conditions. Post hoc analysis indicated that high-MA subjects performed significantly better under verbal praise conditions than did low-MA subjects. Also, knowledge of results was most effective in the presence of verbal praise. We suggested that verbal praise sensitized subjects to attend to the knowledge of results cue.
研究了心理年龄（MA）、结果知晓度和社会强化对轻度智力迟钝儿童在速度型运动任务中表现的影响。发现MA和社会强化变量有显著的主效应，MA×社会强化条件以及结果知晓度×社会强化条件有显著的交互作用。事后分析表明，高MA受试者在言语表扬条件下的表现显著优于低MA受试者。此外，在有言语表扬的情况下，结果知晓度最为有效。我们认为言语表扬使受试者更易于注意结果知晓度提示。
