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| Home > Publications database > Influence of experimental design on the interference and facilitation effect of the Stroop task: a meta-regression analysis |
| Home > Publications database > Influence of experimental design on the interference and facilitation effect of the Stroop task: a meta-regression analysis |
| Master Thesis | FZJ-2021-03592 |
2021
Please use a persistent id in citations: http://hdl.handle.net/2128/28701
Abstract: The Stroop task is used to measure cognitive interfering processes and attention control. The most common type of Stroop is the color-word Stroop task where participants have to react to the ink color and ignore the word meaning. Slower reaction times for the incongruent condition compared to the congruent or the neutral one can be found (interference effect), as well as faster reaction times for the congruent condition compared to the neutral one (facilitation effect). There are several other characteristics, which might influence these two effects. However, inconsistent results are discussed in the literature concerning comparisons between different characteristics and their influence on the interference and facilitation effect. Additionally, for some characteristics, no comparisons and influences were investigated at all. In this study, we used the robust variance estimation method to conduct meta-regression analyses over the behavioral reaction times. We included 80 studies, which contributed 118 effect sizes for the interference and 25 effect sizes for the facilitation effect. We investigated whether five different moderators have an influence on the interference or facilitation effect. Only the moderator level emotional Type of Stroop showed a significant influence only on the interference effect, resulting in a smaller interference effect when the emotional type of Stroop is used. Missing data, imprecise effect size measurements and a selective study sample might be reasons for inaccurate estimations of the underlying true effect size and, therefore, insignificant results concerning the moderator influence.
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