Claims

Applying the Full Roster-Plus Method instead of the Full Roster Method produces very small empirical differences in value-added estimates in District of Columbia Public Schools data

Claim · All claims
Evidence · 1 study · associational r? · q2
Currency · newest study 2015 · checked against its sources 2026-10-20 (automated, 1 of 1 entry) · not reviewed by a person · overdue for a recheck since 2018: 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? Using data from District of Columbia Public Schools, the authors find very small empirical differences between the Full Roster Method and the Full Roster-Plus Method value-added estimates. → Eric Isenberg 2015

Evidence

Eric Isenberg 2015

Eric Isenberg, Elias Walsh. (2015). Accounting for Co-Teaching: A Guide for Policymakers and Developers of Value-Added Models. Journal of Research on Educational Effectiveness, vol. 8, issue 1. https://www.mathematica.org/publications/journal-article-accounting-for-coteachng-a-guide-for-policymakers-and-developers-of-valueadded doi:10.1080/19345747.2014.974232

q2 · i? · associational · r?

An empirical comparison of FRM and FRP value-added estimates using District of Columbia Public Schools data; the article reports "very small empirical differences between the two methods" but prints no effect size or test statistic in the available text.

"To investigate how the application of this method empirically changes value-added estimates, we use data from District of Columbia Public Schools. We find that there are very small empirical differences between the two methods."

Discussion

Page metadata
Field Value
type claim
id frp-vs-frm-very-small-empirical-differences
title Applying the Full Roster-Plus Method instead of the Full Roster Method produces very small empirical differences in value-added estimates in District of Columbia Public Schools data
description Applying the Full Roster-Plus Method instead of the Full Roster Method produces very small empirical differences in value-added estimates in District of Columbia Public Schools data
status review
evidence_strength moderate
newest_evidence 2015
source_checked 2026-10-20
recheck_by 2018
generated by process:wiki-ingest on 2026-10-08
trust unverified — no one has confirmed this page's content
sources 1 — eric-isenberg-2015

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