Claims

CW-FIT substantially increases teacher praise statements but shows no statistically significant effect on some reprimand measures

Claim · All claims
Evidence · 3 studies · 3 causal r2–r3 · q4 · i3 large
Currency · newest study 2023 · 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.

q4 i3 In Wills et al. (2018), teacher praise statements averaged 15.20 in CW-FIT classes versus 3.10 in comparison classes (effect size 2.36, improvement index +49, p<0.01). → wills-2018-praise q4 i? In Wills et al. (2018), the effect on teacher reprimand statements was not statistically significant (effect size 0.11, improvement index +4, p=0.49). → wills-2018-reprimands q4 i? In Wills et al. (2016), the effect on teacher reprimands to a group of students was not statistically significant (effect size 0.06, improvement index +3, p=0.69). → wills-2016-group-reprimands

Evidence

wills-2018-praise

What Works Clearinghouse, Institute of Education Sciences, U.S. Department of Education. (2023, May). Class-Wide Function-Related Intervention Teams (CW-FIT). https://ies.ed.gov/ncee/wwc/InterventionReport/729

q4 · i3 · causal · r2

From the multisite randomized replication trial (Wills et al., 2018), researcher observation of 157 teachers in K to 6 across 21 schools found praise statements averaged 15.20 in intervention versus 3.10 in comparison classes, effect size 2.36, improvement index +49, statistically significant (p<0.01).

"Number of teacher praise statements, based on researcher observation of teachers Multiple time periods during 6-month intervention (Wills et al., 2018) 157 teachers in K to 6 21 schools in Missouri, Tennessee, and Utah 15.20 3.10 2.36 +49 Yes (p<0.01)"

wills-2018-reprimands

What Works Clearinghouse, Institute of Education Sciences, U.S. Department of Education. (2023, May). Class-Wide Function-Related Intervention Teams (CW-FIT). https://ies.ed.gov/ncee/wwc/InterventionReport/729

q4 · i? · causal · r3

Same trial, same 157 teachers: reprimand statements averaged 3.60 in intervention versus 4.60 in comparison classes, effect size 0.11, improvement index +4, not statistically significant (p=0.49). Equivalence was not tested.

"Number of teacher reprimand statements, based on researcher observation of teachers Multiple time periods during 6-month intervention (Wills et al., 2018) 157 teachers in K to 6 21 schools in Missouri, Tennessee, and Utah 3.60 4.60 0.11 +4 No (p=0.49)"

wills-2016-group-reprimands

What Works Clearinghouse, Institute of Education Sciences, U.S. Department of Education. (2023, May). Class-Wide Function-Related Intervention Teams (CW-FIT). https://ies.ed.gov/ncee/wwc/InterventionReport/729

q4 · i? · causal · r3

From the cluster randomized trial (Wills et al., 2016), reprimands to a group of students averaged 1.26 (1.79) in intervention versus 1.63 (1.58) in comparison classes, effect size 0.06, improvement index +3, not statistically significant (p=0.69). Equivalence was not tested.

"Number of teacher reprimands to a group of students, based on researcher observation of teachers Multiple time periods during 6-month intervention (Wills et al., 2016) 153 teachers in grades K to 5 17 schools in midwestern U.S. 1.26 (1.79) 1.63 (1.58) 0.06 +3 No (p=0.69)"

Discussion

Page metadata
Field Value
type claim
id cw-fit-increases-teacher-praise-not-reprimands
title CW-FIT substantially increases teacher praise statements but shows no statistically significant effect on some reprimand measures
description CW-FIT substantially increases teacher praise statements but shows no statistically significant effect on some reprimand measures
status review
evidence_strength mixed
newest_evidence 2023
generated by process:wiki-ingest on 2026-10-07
trust unverified — no one has confirmed this page's content
sources 3 — wills-2018-praise, wills-2018-reprimands, wills-2016-group-reprimands

Frontmatter is the page's machine-readable record — see the Schema & Guide.