Claims

Controlling for SES, monolingual children outperform both simultaneous and sequential bilinguals on single-language English receptive and expressive vocabulary measures

Claim · All claims
Evidence · 1 study (2 entries) · associational r2 · q3 · i3 large
Currency · newest study 2014 · checked against its sources 2026-10-20 (automated, 2 of 2 entries) · not reviewed by a person

Subclaims

Reading the evidence codes

q is the design tier, i the impact, n the sample, and the kind with its r the rigour judged within that kind: what each code means.

This claim: no standardized effect is recorded in observations/ for it yet, so no benchmark reading is possible.

q3 i3 On English receptive vocabulary (PPVT-III), monolinguals outperformed simultaneous and sequential bilinguals, and simultaneous bilinguals outperformed sequential bilinguals, controlling for SES. → Gross Megan 2014 q3 i3 On English expressive vocabulary (Woodcock-Johnson III Picture Vocabulary), all pairwise group differences were significant in the same direction, controlling for SES. → Gross Megan 2014 (2)

Evidence

Gross Megan 2014

Gross Megan, Buac Milijana, Kaushanskaya Margarita. (2014). Conceptual scoring of receptive and expressive vocabulary measures in simultaneous and sequential bilingual children. American Journal of Speech-Language Pathology. https://doi.org/10.1044/2014_AJSLP-13-0026

q3 · i3 · associational · r2

ANCOVA of English receptive vocabulary (PPVT-III) language-specific scores across 40 monolinguals, 39 simultaneous and 19 sequential bilinguals, with SES as covariate; a significant group effect (ηp2 = .30) with all pairwise contrasts significant as quoted.

"The ANCOVA revealed a main effect of group, F (2, 94) = 19.9, p < .001, ηp2 = .30. Follow-up comparisons revealed that the monolinguals outperformed the simultaneous bilinguals, p = .002, and the sequential bilinguals, p < .001, and the simultaneous bilinguals outperformed the sequential bilinguals, p = .001."

Gross Megan 2014 (2)

Gross Megan, Buac Milijana, Kaushanskaya Margarita. (2014). Conceptual scoring of receptive and expressive vocabulary measures in simultaneous and sequential bilingual children. American Journal of Speech-Language Pathology. https://doi.org/10.1044/2014_AJSLP-13-0026

q3 · i3 · associational · r2

ANCOVA of English expressive vocabulary (Woodcock-Johnson III Picture Vocabulary) language-specific scores with SES as covariate in the same 98-child sample; significant group effect (ηp2 = .25) and all pairwise comparisons significant as quoted.

"There was a significant main effect of group, F (2, 94) = 15.8, p < .001, ηp2 = .25. All follow-up comparisons between groups were significant. Monolinguals outperformed simultaneous bilinguals, p = .002, and sequential bilinguals, p < .001, and simultaneous bilinguals outperformed sequential bilinguals, p = .012."

Discussion

Learner Variables

Page metadata
Field Value
type claim
id monolinguals-outperform-bilinguals-single-language-english-vocabulary
title Controlling for SES, monolingual children outperform both simultaneous and sequential bilinguals on single-language English receptive and expressive vocabulary measures
description Controlling for SES, monolingual children outperform both simultaneous and sequential bilinguals on single-language English receptive and expressive vocabulary measures
status review
evidence_strength moderate
newest_evidence 2014
source_checked 2026-10-20
generated by process:wiki-ingest on 2026-10-17
trust unverified — no one has confirmed this page's content
sources 2 — gross-megan-2014, gross-megan-2014-2

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