Claims

Instruction on the marked OBJECT OF A PREPOSITION relative clause type improved grammaticality judgment across most relative clause categories (review-reported, citing Gass 1981)

Claim · All claims
Evidence · 1 study · causal r? · q2
Currency · newest study 1991 · not yet checked against its sources · 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.

q2 i? Subjects instructed on OBJECT OF A PREPOSITION relative clauses outperformed subjects instructed on SUBJECT relative clauses on most grammaticality judgment categories. → Catherine Doughty 1991

Evidence

Catherine Doughty 1991

Catherine Doughty. (1991). Second Language Instruction Does Make a Difference: Evidence from an Empirical Study of SL Relativization. SSLA, 13, 431-469. https://doi.org/10.1017/S0272263100010287

q2 · i? · causal · r?

The review reports Gass's (1981) pilot study: instruction on the marked OBJECT OF A PREPOSITION type produced greater improvement on grammaticality judgment posttests over pretests in most relative clause categories than instruction on the SUBJECT type.

"Gass (1981) found that subjects who received instruction pertaining to OBJECT OF A PREPOSITION type relative clauses outperformed subjects who received instruction on SUBJECT relative clauses, as measured by percent improvement on post- over pretests of grammaticality judgment"

Discussion

Page metadata
Field Value
type claim
id gass-1981-marked-instruction-generalizes
title Instruction on the marked OBJECT OF A PREPOSITION relative clause type improved grammaticality judgment across most relative clause categories (review-reported, citing Gass 1981)
description Instruction on the marked OBJECT OF A PREPOSITION relative clause type improved grammaticality judgment across most relative clause categories (review-reported, citing Gass 1981)
status review
evidence_strength weak
newest_evidence 1991
generated by process:wiki-ingest on 2026-10-17
trust unverified — no one has confirmed this page's content
sources 1 — catherine-doughty-1991

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