Synchronous observed-variable correlations between WMC and intelligence are modest (r = 0.17 to 0.40), lower than latent-variable correlations¶

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 2017 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? In the LOGIC sample, synchronous correlations among observed WMC and intelligence variables ranged between r = 0.17 and 0.40, while latent IQ-WM correlations were considerably higher. → Schneider Wolfgang 2017

Evidence¶

Schneider Wolfgang 2017¶

Schneider Wolfgang, Niklas Frank. (2017). Intelligence and Verbal Short-Term Memory/Working Memory: Their Interrelationships from Childhood to Young Adulthood and Their Impact on Academic Achievement. Journal of Intelligence. https://doi.org/10.3390/jintelligence5020026

q2 · i? · associational · r2

Correlational analyses of WMC with verbal and nonverbal intelligence across t1 to t5 in the LOGIC sample (Table 2), with Steiger's approach for comparing correlations. The article reports observed correlations "varying between r = 0.17 and 0.40" and higher latent relationships.

"the synchronous correlations among the observed variables were not as large as reported in most cross-sectional studies, varying between r = 0.17 and 0.40. Relationships were considerably higher for the latent IQ and WM variables"

Discussion¶

Related Claims¶

• In latent-variable SEM models, intelligence — not working memory — is the significant direct predictor of academic outcomes in both childhood and early adulthood
• Updating ability strongly predicts fluid intelligence, while shifting and inhibition do not significantly predict it.
• More day-to-day WM variability is associated with lower fluid intelligence — related