Working memory is a foundational cognitive skill for language and transcription skills, but its relation to writing is primarily mediated by other component skills¶

Claim · All claims
Evidence · 1 study · associational r2 · q2
Currency · newest study 2017 · checked against its sources 2026-10-24 (automated, 1 of 1 entry) · not reviewed by a person

Subclaims¶

q2 i? Working memory was directly related to foundational oral language skills, higher-order cognitive skills, and transcription skills, but was no longer directly related to writing once all language and cognitive skills were accounted for. → Kim Young-Suk Grace 2017

Evidence¶

Kim Young-Suk Grace 2017¶

Kim Young-Suk Grace, Schatschneider Christopher. (2017). Expanding the developmental models of writing: A direct and indirect effects model of developmental writing (DIEW). Journal of Educational Psychology. https://doi.org/10.1037/edu0000129

q2 · i? · associational · r2

In the final complete mediation SEM (Figure 6) with 193 Grade 1 children, working memory predicted vocabulary and grammatical knowledge (γs = .40 & .40, ps < .001), spelling (γ = .39), and handwriting fluency (γ = .23). The article reports 'working memory was no longer directly related to writing once all the language and cognitive skills were accounted for.'

"It was directly related to foundational oral language skills (vocabulary and grammatical knowledge), higher-order cognitive skills (inference and theory of mind), and transcription skills (spelling and handwriting fluency)."

Discussion¶

Learner Variables¶

• Communication Skills — predictor: learners who differ on it differ in outcomes
• Writing Skills — outcome: instruction changes it

Related Claims¶

• Discourse-level oral language, spelling, and handwriting fluency completely mediate the relations of language and cognitive skills to writing quality in Grade 1 — related
• Total effects on writing quality are largest for discourse-level oral language (.46), working memory (.43), and spelling (.37) — related
• Executive functions do not directly predict syntactic complexity or story content once transcription and language skills are controlled — related
• Inhibition and updating directly predict narrative text length in fourth graders over and above transcription and language skills — reports the opposite
• In a cross-sectional path model of fourth graders, handwriting fluency statistically mediated the relation between inhibition/updating and all narrative outcomes (text length, syntactic complexity, story content) — related