The results from the study on British Sign Language by Comier et al. in deaf children shows that:

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The prompt presents a question about the findings of a study on British Sign Language by Comier et al. in deaf children, asking us to choose which statement the results support.
Option A: 'Grammar performance is worse than that of hearing children.' This claim makes a broad comparison about grammar performance between deaf children and hearing children. Unless the study specifically reports a clear deficit in grammar relative to hearing peers, this statement would be an overgeneralization. Without that explicit result, labeling grammar as worse is not reliably supported.
Option B: 'Transfer between two distinct language systems can facilitate acquisition.' This option points to cross-linguistic or cross-system transfer, a concept supported in bilingual and bimodal language research, where knowledge from one language system (e.g., a sign language) can scaffold learning in another (e.g., a spoken or written language), or where two distinct systems interact to support overall language development. If Comier et al. reported benefits from such transfer in deaf children, this would be a plausible and evidence-based interpretation.
Option C: 'The limited role of CDS in late learners.' CDS refers to child-directed speech. While some studies discuss the role of CDS in language development, this option makes a specific claim about limited CDS impact on late learners, which would require direct evidence from the study about CDS. If the study emphasized cross-system transfer rather than focusing on CDS limitations, this option would be less likely to reflect its main finding.
Option D: 'There is evidence for a critical period that aligns with that of second-language learners.' A claim about a shared or aligned critical period would suggest a timing constraint for language acquisition. Unless the study explicitly demonstrated a critical period effect comparable to second-language learning, this statement would be speculative and not necessarily a reported result of that particular research.
In summary, Option B highlights cross-system transfer as a facilitator of acquisition, which aligns with a common interpretation in bimodal bilingual research and matches the provided correct answer. The other options either overstate deficits, misattribute findings to CDS without direct support, or assert a critical-period claim that the study may not have established.

PSYC20008_2025_SM1 Developmental Psychology (PSYC20008_2025_SM1) End of Semester PRACTICE Exam MCQ - Requires Respondus LockDown Browser

The results from the study on British Sign Language by Comier et al. in deaf children shows that:

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