The objective of this article is to present the development and evaluation of dETECT (Evaluating TEaching CompuTing), a model for the evaluation of the quality of instructional units for teaching computing in middle school based on the students’ perception collected through a measurement instrument. The dETECT model was systematically developed and evaluated based on data collected from 16 case studies in 13 different middle school institutions with responses from 477 students. Our results indicate that the dETECT model is acceptable in terms of reliability (Cronbach’s alpha α=.787) and construct validity, demonstrating an acceptable degree of correlation found between almost all items of the dETECT measurement instrument. These results allow researchers and instructors to rely on the dETECT model in order to evaluate instructional units and, thus, contribute to their improvement and to direct an effective and efficient adoption of teaching computing in middle school.

中文翻译：

---

dETECT：中学计算机教学单元评估模型

本文的目的是介绍dETECT（评估教学计算）的开发和评估，该评估模型是根据通过测量仪器收集的学生的感知来评估中学教学计算机的教学单元质量的模型。dETECT模型是根据从13个不同的中学机构的16个案例研究收集的数据进行系统开发和评估的，其中有477名学生做出了回应。我们的结果表明，就可靠性（Cronbach's alphaα= .787）和构造效度而言，dETECT模型是可以接受的，这表明在dETECT测量仪器的几乎所有项目之间都可以找到可接受的相关程度。这些结果使研究人员和讲师可以依靠dETECT模型来评估教学单位，因此，