ArticleFrontiers in psychology2026
When suppressor effects may reflect multicollinearity artifacts: a cautionary tale from multiple object tracking and clay pigeon shooting performance.
Article in Frontiers in psychology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Objective: To evaluate whether multiple object tracking (MOT) predicts clay pigeon shooting performance, and to illustrate how multicollinearity between demographic covariates can mimic suppressor effects. Methods: Twenty shooters completed a MOT task (2-6 targets). Zero-order and partial correlations, hierarchical regression, LOOCV, VIF diagnostics, and power analysis were computed. Two specifications were compared: Specification A (age + training years, multicollinear) and Specification B (age only, VIF < 2.5). Results: Age and training years were near-perfectly correlated (r = 0.928). Under Specification A Conclusion: The apparent suppressor effect is consistent with multicollinearity between age and training years rather than genuine prediction, though the small sample (
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