练习对轻度智障和非智障成年人检查时间的影响。
Effects of practice on inspection time for mildly mentally retarded and nonretarded adults.
作者信息
Nettelbeck T, Evans G, Kirby N H
出版信息
Am J Ment Defic. 1982 Jul;87(1):103-7.
Successive estimates of inspection time (lambda) interspersed with practice were made for 10 mildly retarded adults (mean IQ = 60) and 10 nonretarded adults. Each subject completed approximately 800 trials overall. A significant practice effect was found for both groups, but with average measures of lambda from the retarded group remaining more than twice as long as those from the nonretarded group. Intercorrelations within both groups between measures confirmed that lambda provides a reliable index of discriminative performance. A response requirement involving a keypress was compared with a simplified pointing response, but results indicated that these alternatives did not influence estimates of lambda on the effects of practice.
对10名轻度智障成年人（平均智商 = 60）和10名非智障成年人进行了穿插练习的检查时间（λ）的连续估计。每个受试者总共完成了大约800次试验。两组均发现了显著的练习效应，但智障组的λ平均测量值仍是非智障组的两倍多。两组内测量之间的相互相关性证实，λ提供了一个可靠的辨别性能指标。将涉及按键的反应要求与简化的指向反应进行了比较，但结果表明，这些替代方法对练习效果的λ估计没有影响。
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