This article introduces a blocked-design procedure for cognitive diagnosis computerized adaptive testing (CD-CAT), which allows examinees to review items and change their answers during test administration. Four blocking versions of the new procedure were proposed. In addition, the impact of several factors, namely, item quality, generating model, block size, and test length, on the classification rates was investigated. Three popular item selection indices in CD-CAT were used and their efficiency compared using the new procedure. An additional study was carried out to examine the potential benefit of item review. The results showed that the new procedure is promising in that allowing item review resulted only in a small loss in attribute classification accuracy under some conditions. Moreover, using a blocked-design CD-CAT is beneficial to the extent that it alleviates the negative impact of test anxiety on examinees’ true performance.

中文翻译：

---

CD-CAT的阻止CAT程序

本文介绍了用于认知诊断计算机自适应测试（CD-CAT）的分块设计程序，该程序使应试者可以在考试管理过程中查看项目并更改答案。提出了新程序的四个阻塞版本。此外，还研究了项目质量，生成模型，块大小和测试长度等几个因素对分类率的影响。使用了CD-CAT中的三个流行项目选择指标，并使用新程序比较了它们的效率。进行了另一项研究，以检查项目审查的潜在好处。结果表明，该新程序很有希望，因为在某些情况下，允许项目审阅只会导致属性分类准确性的少量损失。此外，