The University of Auckland, New Zealand.
J Exp Anal Behav. 2021 Jul;116(1):114-123. doi: 10.1002/jeab.694. Epub 2021 May 17.
Conventionally, when choice is measured under concurrent schedules, all responses are included. However, the class of all responses consists of 2 sub-classes which are discriminable by their properties: Reinforced responses always equal obtained reinforcers, while unreinforced responses are free to vary. As a result, the inclusion of reinforced responses in choice measures results in sensitivity values in generalized matching that are biased toward larger values, and this bias becomes extreme in some combinations of overall response and reinforcer rates. Different ways of varying concurrent-schedule values also affect estimated sensitivity and the linearity between choice based on all responses and reinforcer ratios. To avoid spurious results and comparisons, and as a matter of good practice, generalized-matching fits and measures should be done using only unreinforced responses.
传统上，当在并行时间表下测量选择时，会包括所有的反应。然而，所有反应的类别由两个子类组成，它们可以根据其属性来区分：强化反应始终等于获得的强化物，而未强化反应则可以自由变化。因此，在选择测量中包含强化反应会导致广义匹配中的敏感性值偏向于更大的值，并且这种偏差在某些总反应和强化物率的组合中变得极端。改变并行时间表值的不同方法也会影响基于所有反应和强化物比率的选择的估计敏感性和线性关系。为了避免虚假结果和比较，并且作为良好实践的一部分，应该仅使用未强化反应来进行广义匹配拟合和测量。
