The Stroop Effect

Discussion
This conceptual, numerical replication of the Stroop Effect provides more evidence for the idea that tasks in which incongruence was present will have a greater completion time than tasks in which incongruence was not present due to the levels of processing within each task. Results from this study demonstrate that the reading condition (numbers, no interference) had the lowest completion time while the incongruent counting condition (interference/incongruence) had the greatest completion time. The counting condition (plus signs, no interference) took more time to complete than the reading condition, and the experimenter-generated condition (congruent counting) had a greater completion time than the counting condition. The results

A later study demonstrated that incongruence and interference led to a greater response time (Windes, 1968). Interference was present in the current study in the incongruent counting condition, and these results support Windes’s results in that the present study also demonstrated an increased reaction time for incongruent tasks in which interference was present. One theory of this effect is based on speeds of processing (MacLeod, 1991); this idea states that words are simply read faster than colors are named (Cattell, 1886). The theory, however, would be inapplicable to a number-based Stroop task such as the present study. Instead, the depth of processing model may be utilized as a new theory of how the Stroop effect operates cognitively (Eidels, Ryan, Williams, & Algom,

This could have led to practice effects in that students were made aware of the date they would be participating in the study, so they may have practiced each of the lists before completing the study in order to make themselves appear better at cognitive tasks. To combat this, modified lists could been used in future