The single-point and range-bound changing criterion design have been proposed as single-case experimental designs. The only form of randomization currently available for these designs is phase change moment randomization. The present article describes two novel randomization procedures for changing criterion designs, the blocked alternating criterion randomization and randomized alternating criterion randomization, and illustrates their use. Appropriate randomization procedures are introduced for situations in which it is desirable to maintain the stepwise nature of the changing criterion design and situations in which the change in the dependent variable can be assumed not to follow the stepwise pattern. The article further discusses contexts in which each of the randomization procedures for the changing criterion design may be useful, and explains how the procedures maintain the researcher's flexibility.

中文翻译：

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改变标准设计的附加随机化测试程序

单点和范围变化准则设计已被提出作为单案例实验设计。目前可用于这些设计的唯一随机化形式是相变矩随机化。本文介绍了两种用于改变标准设计的新随机化程序，即块状交替标准随机化和随机交替标准随机化，并说明了它们的用途。对于希望保持变化标准设计的逐步性质的情况以及可以假设因变量的变化不遵循逐步模式的情况，引入了适当的随机化程序。本文进一步讨论了变化标准设计的每个随机化程序可能有用的上下文，