Within-person variance in cognitive inhibition tasks is heterogeneous, with person-specific reliability differing up to tenfold¶

Claim · All claims
Evidence · 1 study · associational r? · q2
Currency · newest study 2021 · not yet checked against its sources · not reviewed by a person · overdue for a recheck since 2024: tool and model accuracy changes quickly

Subclaims¶

q2 i? In cognitive inhibition tasks, within-person variance is heterogeneous across individuals; in one task the largest-to-smallest within-person variance ratio exceeded 20, translating into a tenfold difference in person-specific reliability. → Donald Williams 2021

Evidence¶

Donald Williams 2021¶

Donald Williams, Stephen Martin, Phillipe Rast. (2021). Putting the individual into reliability: Bayesian testing of homogeneous within-person variance in hierarchical models. Behavior Research Methods. https://doi.org/10.3758/s13428-021-01646-x

q2 · i? · associational · r?

Application of the authors' Bayesian within-person variance methodology to cognitive inhibition task data shows "heterogeneous within-person variance is a defining feature of these tasks", with one task's variance ratio exceeding 20 and a tenfold person-specific reliability difference. No standardized effect size is printed.

"We find that heterogeneous within-person variance is a defining feature of these tasks, and in one case, the ratio between the largest to smallest within-person variance exceeded 20. This translates into a tenfold difference in person-specific reliability!"

Discussion¶

Related Claims¶

• Few individuals belong to the common within-person variance model, so traditional reliability indices may mask individual variation — related