This investigation aims to explore attentional capacity in response to the presentation of visual stimuli. Attention, as an essential process, underpins skills such as language and learning, in addition to supporting various other critical cognitive functions and processes. With this ultimate goal in mind, the Stroop Color Word Test (SCWT), a widely used neuropsychological test in experimental, developmental, clinical, psychopathological, and neuropsychological contexts, was employed to assess attention. The SCWT was administered using SuperLab version 6 software, where the entire experiment was developed and created. The results reiterated the robustness of the Stroop Effect, with participants showing increased reaction times and a higher error rate for incongruent stimuli compared to congruent ones. These results were consistent among participants regardless of age, suggesting that cognitive conflict affects individuals of different ages similarly. The data did not indicate a correlation between participants’ age and performance measures on the test.