The paper discusses the problems on the validity of single subject research from theory and manipulation.

本文从理论与操作两个层面叙述了单一被试实验的效度问题。

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In the theory, the rationality of single subject research is demonstrated by single coexistent analogy, plausible reasoning and falsification.

在理论层面，借用简单共存类比、合情推理与证伪法的思想论证了单一被试实验设计的合理性。

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The single subject research is one of the useful methods in the research of special children's psychology and education, but its external validity often receives challenges.

单一被试实验是特殊儿童心理与教育研究中的一种常用方法，但其外部效度往往受到质疑。

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The report compiles the bulk of the peer-reviewed research available on the subject, and the result is a single document that illustrates the problem, the gaps in the research, and the potential solutions.

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