Claims

Instructional leadership ratings are high even in bottom-quartile Chicago high schools: 85 percent of top-quartile teachers give strong or very strong ratings, and half of bottom-quartile teachers do so as well

Claim · All claims
Evidence · 1 study · associational r1 · q2
Currency · newest study 1997 · checked against its sources 2026-10-08 (automated, 1 of 1 entry) · not reviewed by a person · overdue for a recheck since 2000: 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.

q2 i? On the Instructional Leadership scale, 85 percent of top-quartile teachers give very strong or strong ratings, and even in the bottom quartile half of teachers give strong or very strong ratings. → Anthony Bryk 1997

Evidence

Anthony Bryk 1997

Anthony Bryk, Stuart Luppescu, Diane King Bilcer, Gudelia Lopez, Jenny Nagaoka, John Q. Easton. (1997). Improving Chicago's Schools: John Tyler High School. Consortium on Chicago School Research, 1313 E. 60th Street, Chicago IL 60637. https://consortium.uchicago.edu/publications/improving-chicagos-schools-john-tyler-high-school

q2 · i? · associational · r1

Descriptive quartile comparison from the Instructional Leadership scale summary, which assesses teacher perceptions of the principal as an instructional leader who sets high standards, communicates a clear vision, and tracks academic progress. No significance test is reported.

"Teachers in the top quartile schools give their principals very high ratings for instructional leadership. Eighty-five percent give very strong or strong ratings. Even in the bottom quartile, teachers rate principals highly, with half giving strong or very strong ratings."

Discussion

Page metadata
Field Value
type claim
id instructional-leadership-high-ratings-both-quartiles-1997
title Instructional leadership ratings are high even in bottom-quartile Chicago high schools: 85 percent of top-quartile teachers give strong or very strong ratings, and half of bottom-quartile teachers do so as well
description Instructional leadership ratings are high even in bottom-quartile Chicago high schools: 85 percent of top-quartile teachers give strong or very strong ratings, and half of bottom-quartile teachers do so as well
status review
evidence_strength weak
newest_evidence 1997
source_checked 2026-10-08
recheck_by 2000
generated by process:wiki-ingest on 2026-10-08
trust unverified — no one has confirmed this page's content
sources 1 — anthony-bryk-1997

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