The study aimed to investigate the effectiveness of using the Signal Verification Theory in identifying emotional dissonance among university students, through the application of the Stroop Task as a tool for measuring cognitive interference and selective attention. The researchers employed a quasi-experimental design, conducting the study on a sample of Cairo University students selected from the Faculties of Specific Education, Engineering, Arts, Computers and Artificial Intelligence, Agriculture, and Dar Al-Uloom. The pilot sample for psychometric properties included 130 male and female students from the Faculties of Agriculture and Dar Al-Uloom, with a mean age of 21.47 years (SD = 1.285), aiming to calibrate the measurement tools and determine the appropriate reaction time for the experimental design. The main sample consisted of 340 students, with a mean age of 21.65 years (SD = 1.095). The results indicated that the Stroop Task, designed in light of Signal Verification Theory, was able to distinguish between students with low emotional consonance and their peers. This was reflected in the increased mean reaction time for emotional words compared to neutral words, and in reduced accuracy for neutral words compared to emotional words. The findings also suggested that emotional variables significantly influence cognitive performance, confirming the strong relationship between attention and emotions, and reinforcing the importance of employing Signal Verification Theory as an effective diagnostic approach in educational settings.