Bilingual school-age children's microstructure converged with monolinguals', consistent with bilinguals exceeding the ~60% input benchmark for typical development¶

Claim · All claims
Evidence · 1 study · associational r1 · q2
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person · recheck by 2031: baselines and conditions change

Subclaims¶

q2 i? NDW differences between bilingual and monolingual school-age children disappeared, which the authors attribute to sufficient English input and increasing translation equivalents. → Hayes 2026

Evidence¶

Hayes 2026¶

Hayes, R. L., and Kan, P. F. (2026). Shared and divergent patterns in narrative skills: comparing English monolingual and Japanese–English bilingual children. Frontiers in Psychology. https://doi.org/10.3389/fpsyg.2026.1747702

q2 · i? · associational · r1

Authors' interpretation (type e) in the Discussion: bilinguals received about 43.6 h of English per week versus monolinguals' 51.5 h—approximately 84% of monolingual input—when school input is included. The article offers this input account as an explanation, not a tested manipulation.

"Thus, the bilinguals exceeded the 60% benchmark, which may have contributed to their comparable school-age microstructure outcomes."

Discussion¶

Learner Variables¶

• Reading and Language — predictor: learners who differ on it differ in outcomes

Related Claims¶

• No macrostructure measure differs significantly between bilingual and monolingual children, while age improves story structure, internal state terms, comprehension, and aggregate scores but not structural complexity — related
• All narrative microstructure measures increase with age group, but only lexical diversity (NDW) differs between Japanese–English bilingual and English monolingual children — related
• Language × Age interactions show bilingual preschoolers had the lowest MLUm, NDW, and SI scores, while bilingual school-age children produced the most fragments — related
• Bilingual children acquire vocabulary and syntax in each language more slowly than monolingual children, yet show cognitive advantages and can match or surpass monolingual peers with support — related
• English learners can learn to read in English at the same rate as their monolingual peers in the primary grades — related
• Socioeconomic status differences between bilingual and monolingual groups may determine study outcomes — related