Claims

Principals were far more likely than trained external observers to rate the same instruction Distinguished rather than Proficient

Claim · All claims
Evidence · 1 study (2 entries) · associational r2 · q2
Currency · newest study 2011 · checked against its sources 2026-10-20 (automated, 2 of 2 entries) · not reviewed by a person · overdue for a recheck since 2014: tool and model accuracy changes 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? Across all components, principals were significantly more likely than observers to call Proficient-level practice Distinguished. → Sartain 2011 q2 i? 52 percent of simultaneously observed teachers received at least one Distinguished rating from principals versus 24 percent from observers. → Sartain 2011 (2)

Evidence

Sartain 2011

Sartain, L., Stoelinga, S. R., & Brown, E. R., with Luppescu, S., Kapadia Matsko, K., Miller, F. K., Durwood, C. E., Jiang, J. Y., & Glazer, D. (2011). Rethinking Teacher Evaluation in Chicago: Lessons Learned from Classroom Observations, Principal-Teacher Conferences, and District Implementation. Consortium on Chicago School Research at the University of Chicago. https://consortium.uchicago.edu/publications/rethinking-teacher-evaluation-chicago-lessons-learned-classroom-observations-principal

q2 · i? · associational · r2

Statistical comparison of 501 matched principal-observer ratings of the same lesson found principals "significantly more likely to call practice Distinguished when observers rated the same instruction as Proficient." Figure 3 shows an odds ratio of 6.18, significant at the .01 level; the article prints no standardized effect size for this contrast.

"Across all components, principals were also significantly more likely to call practice Distinguished when observers rated the same instruction as Proficient"

Sartain 2011 (2)

Sartain, L., Stoelinga, S. R., & Brown, E. R., with Luppescu, S., Kapadia Matsko, K., Miller, F. K., Durwood, C. E., Jiang, J. Y., & Glazer, D. (2011). Rethinking Teacher Evaluation in Chicago: Lessons Learned from Classroom Observations, Principal-Teacher Conferences, and District Implementation. Consortium on Chicago School Research at the University of Chicago. https://consortium.uchicago.edu/publications/rethinking-teacher-evaluation-chicago-lessons-learned-classroom-observations-principal

q2 · i? · design · r2

Descriptive ratings data from the matched-observation reliability sample of 257 teachers: "52 percent received at least one Distinguished rating from principals, but only 24 percent received a Distinguished rating from observers." Overall, principals gave 17 percent Distinguished ratings versus 3 percent for observers.

"Of the 257 teachers observed simultaneously by the principal and observer, 52 percent received at least one Distinguished rating from principals, but only 24 percent received a Distinguished rating from observers."

Discussion

Page metadata
Field Value
type claim
id principals-inflate-distinguished-ratings
title Principals were far more likely than trained external observers to rate the same instruction Distinguished rather than Proficient
description Principals were far more likely than trained external observers to rate the same instruction Distinguished rather than Proficient
status review
evidence_strength moderate
newest_evidence 2011
source_checked 2026-10-20
recheck_by 2014
generated by process:wiki-ingest on 2026-10-08
trust unverified — no one has confirmed this page's content
sources 2 — sartain-2011, sartain-2011-2

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