Executive function
Do flanker and Simon tasks really measure self-control?
Open access · cc by · source: Europe PMC
Scores on popular conflict tasks were barely predicted by skills thought to train inhibition and did not relate at all to people's self-rated self-control or impulsivity.
Study at a glance
- Design
- Cross-sectional — Single-session individual-differences study: four arrow-based interference tasks, Raven's matrices and questionnaires, analysed with stepwise, residual and LASSO regressions and Bayes factors
- N
- N=201 · 201 San Francisco State University undergraduates retained from 213 tested (9 incomplete, 3 excluded for extreme accuracy or speed); a matched sub-analysis paired all 52 men with 52 women of identical Raven's score
- Population
- US university undergraduates (149 women, 52 men)
- Outcome
- Reaction-time interference scores (incongruent minus congruent) on flanker, Simon, spatial Stroop and vertical Stroop tasks, and a composite of the three tasks that clustered together
Structured fields used in claim comparison tables when every cited study has a complete layer.
Key findings
Only two predictors held up consistently: higher Raven's scores and being male went with smaller interference, together explaining about 18.4% of the variance in the composite score. The male advantage stayed the same size when men were matched to women with identical Raven's scores. Bilingualism, music training, meditation and exercise showed no meaningful link, with Bayes factors favouring no effect; video gaming correlated weakly but dropped out once sex and reasoning were included. None of the correlations between interference scores and self-reported impulsivity or self-control was significant.
Methodology
Students completed four quick arrow tasks in which the correct response sometimes conflicted with irrelevant information such as where the arrow appeared or which way neighbouring arrows pointed. The slowdown on conflicting trials (the interference score) is widely treated as a measure of inhibitory control. Participants also did a short Raven's reasoning test and reported their bilingualism, music training, video gaming, meditation, exercise, sports ability, income and other background details, plus standard impulsivity and self-control questionnaires. The researchers tested which of these predicted interference scores using several regression methods and Bayes factors.
Limitations
All participants were students from one university, so the lack of effects for things like income or exercise may not hold in children or broader populations. Experiences such as meditation and gaming were measured with single self-report items, and self-control questionnaires rely on memory and self-image. The tasks shared very similar stimuli and responses, and only 25% of trials were incongruent, which could shape what the scores reflect. Because the design is correlational, it cannot show that training in any activity fails to change inhibition; it only shows that natural variation in these activities does not predict interference scores here.
How this study connects
Role on claims
Each row is a claim on a concept or method page where this paper supports, challenges, or qualifies the statement. Roles are hand-checked — not a model guess.
Not yet placed on a claim. This paper has study layers, but no concept page yet cites it as support, challenge, or qualifier.
Related papers in this topic
Same topic cluster — not a recommendation engine.
- Are stopping an action and ignoring distraction the same skill?
- Do 'hot' and 'cool' self-control develop differently in teens?
- Do children struggle with memory demands or physical self-control?
- Does screen time at age two predict toddlers' executive function?
- Do kids with weaker self-control show riskier eating habits?