Claims

Linked learning communities produced no statistically significant or substantively important effects on credit accumulation across six studies

Claim · All claims
Evidence · 1 study (2 entries) · causal r3 · q3
Currency · newest study 2014 · 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.

q3 i? In the Kingsborough RCT, the intervention group accumulated more credits on average (27.7 versus 26.2) within two semesters postprogram, but the difference was not statistically significant. → What Works Clearinghouse 2014 q3 i? None of the six studies in this domain showed a statistically significant or substantively important effect. → What Works Clearinghouse 2014 (2)

Evidence

What Works Clearinghouse 2014

What Works Clearinghouse, U.S. Department of Education. (2014). Linked Learning Communities. WWC Intervention Report. https://ies.ed.gov/ncee/wwc/InterventionReport/630

q3 · i? · causal · r3

Kingsborough RCT (Sommo et al., 2012; 1,534 students) reporting regular credits accumulated within two semesters postprogram; the WWC prints an average improvement index of +3 for this study's credit accumulation finding.

"Although the intervention group had accumulated more credits on average (27.7 credits versus 26.2 credits), this difference was not statistically significant, and was not large enough to be considered substantively important."

What Works Clearinghouse 2014 (2)

What Works Clearinghouse, U.S. Department of Education. (2014). Linked Learning Communities. WWC Intervention Report. https://ies.ed.gov/ncee/wwc/InterventionReport/630

q3 · i? · review · r3

WWC synthesis of six RCTs (about 7,400 students). Site-level contrasts were small: Hillsborough 5.3 versus 4.9 credits, Houston 4.7 in both groups, Queensborough 12.4 versus 11.8, Baltimore 5.9 versus 6.0, Merced 4.9 versus 5.1.

"Thus, for the credit accumulation domain, none of the six studies that met WWC group design standards showed either a statistically significant effect or an effect large enough to be considered substantively important."

Discussion

Page metadata
Field Value
type claim
id linked-learning-communities-credit-accumulation-no-effect
title Linked learning communities produced no statistically significant or substantively important effects on credit accumulation across six studies
description Linked learning communities produced no statistically significant or substantively important effects on credit accumulation across six studies
status review
evidence_strength moderate
newest_evidence 2014
generated by process:wiki-ingest on 2026-10-09
trust unverified — no one has confirmed this page's content
sources 2 — what-works-clearinghouse-2014, what-works-clearinghouse-2014-2

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