Scientific research has accompanied test building at ETEC from the beginning, as after each test is created, a series of analyses, including item analysis and whole test analysis, are conducted to determine the psychometric properties of each level, as well as the overall performance of test-takers, and their performance based on demographic or educational characteristics, or otherwise. 

Relevant entities, whether internal at NCA or external, are then supplied with recommendations that are issued based on the results of these analyses.

The results also help ETEC carry out necessary modifications and improvements to their products. Many of these studies are action research studies, while others contribute to the relevant field of knowledge in addition to solving relevant problems. The research community and the society as a whole are interested in these studies and their outcomes. This page will be dedicated to publishing these reviewed studies, which are conducted by ETEC researchers and collaborators, in both English and Arabic.​​