VIP effects did not differ between English language learners and fluent English speakers in the study authors' analyses¶

Claim · All claims
Evidence · 1 study · causal r2 · q3
Currency · newest study 2006 · checked against its sources 2026-10-18 (automated, 1 of 1 entry) · 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 i? The study authors' analyses did not show an interaction between treatment and language status (English language learner versus fluent English speaker). → Vocabulary Improvement Program for English Language Learners and Their Classmates 2006

Evidence¶

Vocabulary Improvement Program for English Language Learners and Their Classmates 2006¶

Vocabulary Improvement Program for English Language Learners and Their Classmates. (2006). What Works Clearinghouse Intervention Report, U.S. Department of Education. http://www.brookespublishing.com/store/books/lively-6342/index.htm

q3 · i? · causal · r2

The report states, based on correspondence with the study authors, that the Carlo et al. (2004) analyses found no treatment-by-language-status interaction, which is why effects were not reported separately for the two groups and the WWC obtained subsample data directly from the authors.

"The study authors' analyses did not show an interaction between treatment and language status (English language learner versus fluent English speaker)."

Discussion¶

Learner Variables¶

Reading and Language — moderator: an instructional effect differs with it
English-Learner Status — moderator: an instructional effect differs with it

Spoken–written advantages are larger for second-language and nonfluent first-language readers and for low prior knowledge learners — the general claim this finding bears on, with the studies behind it
Native versus non-native instructor status was a minor factor in students' perceived quality interaction — related
Word frequency does not modulate the transposed-character effect in either experiment — related
Feedback quality did not differ by students' language status for either human evaluators or ChatGPT — related
Statewide mathematics achievement gaps between English learners and English speakers increased from 2015 to 2017, a pattern evident in all but one MiC district — related

Page metadata

Field	Value
`type`	`claim`
`id`	`vip-no-treatment-language-status-interaction`
`title`	`VIP effects did not differ between English language learners and fluent English speakers in the study authors' analyses`
`description`	`VIP effects did not differ between English language learners and fluent English speakers in the study authors' analyses`
`status`	`review`
`evidence_strength`	`weak`
`newest_evidence`	`2006`
`source_checked`	`2026-10-18`
`generated`	by `process:wiki-ingest` on `2026-10-07`
`trust`	unverified — no one has confirmed this page's content
`sources`	1 — `vocabulary-improvement-program-for-english-language-learners-and-their-classmates-2006`

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