University of Maryland Baltimore County.
J Appl Behav Anal. 1987 Winter;20(4):401-4. doi: 10.1901/jaba.1987.20-401.
Stokes, Osnes, and Guevremont's (1987) implicit definition of correspondence classes appears close to ours (Matthews, Shimoff, & Catania, 1987). Their definition, however, is fundamentally procedural and thus may have to be modified as experimental methodologies are refined. The advantage of our contingency-space analysis is that it is independent of specific procedures and focuses attention on problems inherent in some procedural definitions. Specifically, a contingency-space analysis addresses the issue of distinguishing specific instances from classes and reminds us that correspondence can be identified as a class only on the basis of observing a population of opportunities for say/do sequences in which the subject sometimes does not say.
斯托克斯、奥斯尼斯和盖弗雷蒙特（1987 年）对应变类的隐含定义似乎与我们的（马修斯、希莫夫和卡塔尼亚，1987 年）相似。然而，他们的定义从根本上说是程序性的，因此，随着实验方法的完善，可能需要加以修改。我们的权变空间分析的优势在于它不依赖于特定的程序，而是将注意力集中在一些程序性定义中固有的问题上。具体来说，权变空间分析解决了将具体实例与类别区分开来的问题，并提醒我们，只有通过观察主体有时不说的情况下的机会序列的样本，才能将对应关系识别为一个类别。
