Final estimated working memory accuracy correlates positively with fluid intelligence¶

Claim · All claims
Evidence · 1 study · associational r2 · q3 · i2 medium
Currency · newest study 2021 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i2 Final WM accuracy showed evidence of a positive relation to Gf (r(85) = 0.33). → Aaron Cochrane and C. Shawn Green 2021

Evidence¶

Aaron Cochrane and C. Shawn Green 2021¶

Aaron Cochrane and C. Shawn Green. (2021). Trajectories of performance change indicate multiple dissociable links between working memory and fluid intelligence. npj Science of Learning. https://doi.org/10.1038/s41539-021-00111-w

q3 · i2 · associational · r2

Correlational analysis in an experiment with 87 participants who completed matrix reasoning measures and a digitized Corsi spatial span task. Final WM accuracy related to Gf with a printed correlation of r = 0.33 (CI = [0.11, 0.52], BF log3 = 2.99).

"In contrast, both rate of change on the WM task ( r(85) = −0.30, CI = [−0.49, −0.08], BFlog3 = 2.05) and final accuracy ( r(85) = 0.33, CI = [0.11, 0.52], BF log3 = 2.99) showed evidence of relations to Gf"

Discussion¶

Learner Variables¶

• General Cognitive Ability — predictor: learners who differ on it differ in outcomes

Related Claims¶

• Estimated final WM accuracy is a statistical near-isomorphism of the standard overall-accuracy measure — related
• Rate of change in working memory performance correlates with fluid intelligence independently of final accuracy — related
• Fluid abilities (Gf) significantly predicted the rate of learning, whereas crystallized abilities (Gc) significantly predicted final learning performance in a one-week instructional process — related
• Initial working memory accuracy shows no reliable relation with fluid intelligence — related