Claims

Two LAUNCH elementary schools with NBCT clusters showed significantly positive differences on 8 of 16 school measures

Claim · All claims
Evidence · 1 study · associational r1 · q1
Currency · newest study 2006 · checked against its sources 2026-10-20 (automated, 1 of 1 entry) · not reviewed by a person · overdue for a recheck since 2009: local conditions change quickly

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.

q1 i? The two elementary schools with both a LAUNCH principal and a cluster of at least three national-board-certified teachers showed significantly positive differences on 8 of 16 measures compared to schools with similarly experienced principals. → Hart 2006

Evidence

Hart 2006

Hart, H. M., Ponisciak, S. M., Sporte, S. E., & Stevens, W. D. (2006). Principal and Teacher Leadership in Chicago: Continuing Analysis of Three Initiatives. Evaluation Report prepared for The Chicago Public Education Fund, Consortium on Chicago School Research. https://consortium.uchicago.edu/publications/principal-and-teacher-leadership-chicago-continuing-analysis-three-initiatives

q1 · i? · associational · r1

Analysis of teacher survey ratings in only two elementary schools that combined a LAUNCH principal with an NBCT cluster, testing The Fund's theory of action that concentrating talented teachers and leadership moves schools toward improvement. Measures included instructional leadership, teacher influence, school commitment, collective responsibility, and innovation.

"Results of this analysis showed a significant positive effect on 8 of 16 measures for the two LAUNCH schools with NBCT clusters compared to other schools with comparably experienced principals."

Discussion

Page metadata
Field Value
type claim
id launch-nbct-cluster-schools-dramatic-effects
title Two LAUNCH elementary schools with NBCT clusters showed significantly positive differences on 8 of 16 school measures
description Two LAUNCH elementary schools with NBCT clusters showed significantly positive differences on 8 of 16 school measures
status review
evidence_strength weak
newest_evidence 2006
source_checked 2026-10-20
recheck_by 2009
generated by process:wiki-ingest on 2026-10-08
trust unverified — no one has confirmed this page's content
sources 1 — hart-2006

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