Titration of storage task difficulty reduces the age difference in dual task costs to a non-significant level¶

Claim · All claims
Evidence · 1 study · quant-synthesis r? · q3
Currency · newest study 2019 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? The age difference in the concurrence cost is significant in non-titrated studies (-0.246) but smaller and non-significant in titrated studies (-0.111), and the two effect sizes do not differ significantly. → Jaroslawska 2019

Evidence¶

Jaroslawska 2019¶

Jaroslawska, A. J., & Rhodes, S. (2019). Adult Age Differences in the Effects of Processing on Storage in Working Memory: A Meta-Analysis. Psychology & Aging. https://doi.org/10.1037/pag0000358

q3 · i? · quant-synthesis · r?

Meta-regression of the paired dual task cost with titration as moderator. Titration "did not significantly reduce heterogeneity in effect sizes, Q(1) = 1.583, p = 0.208", and the two moderator-level effect sizes did not differ significantly (difference 0.135, p = 0.208).

"There was a small, significant, age difference in the concurrence cost for studies that did not titrate, -0.246 [-0.38, -0.113]. The effect size for studies that did titrate was smaller and not significantly different from zero, -0.111 [-0.274, 0.053]."

Discussion¶

Related Claims¶

• Titration of storage task difficulty substantially reduces age differences in both single-task and dual-task memory accuracy — related
• In a combined meta-regression, titration but not domain overlap reduces age differences in dual-task performance, with no interaction between the two factors — related
• Older adults show a small but disproportionate age-related cost of concurrent processing on storage accuracy in working memory dual tasks — related