For Clark County students designated At-risk, One-Star designation significantly raises math but not ELA scores¶
Claim · All claims
Evidence · 1 study · causalr2·q2
Currency · newest study 2025 · not yet checked against its sources · not reviewed by a person · recheck by 2028: 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? Among Clark County students designated At-risk, the One-Star rating produced a statistically significant 0.2 standard deviation increase in math scores, while the smaller 0.08 ELA effect was not statistically significant; both effects were smaller than for students overall. → Tanner 2025
Evidence¶
Tanner 2025¶
Tanner, S., Krausen, K., Garcia, B., & Brown, A. (2025). Understanding the At-risk indicator: Nevada's Pupil-Centered Funding Plan. WestEd. https://eric.ed.gov/?id=ED677573
q2 · i? · causal · r2
RDD analysis of Clark County students designated At-risk, using spring 2024 grade-standardized math and ELA scores against 2022/23 school index scores centered at the One-Star threshold. "Figure 8 shows the effect for math scores: a 0.2 standard deviation increase due to One-Star status," significant; the 0.08 ELA effect was not statistically significant. The report prints threshold jumps, not standardized effect-size statistics, so impact is null.
"Figure 8 shows the effect for math scores: a 0.2 standard deviation increase due to One-Star status. This is smaller than the effect for students overall, but it is still large enough to be statistically significant."
Discussion¶
Related Claims¶
- In Clark County, One-Star designation significantly raises math and ELA scores for all students — related
- Statewide, One-Star designation has a modest significant positive effect on ELA but not on math scores — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
one-star-designation-clark-county-at-risk-students |
title |
For Clark County students designated At-risk, One-Star designation significantly raises math but not ELA scores |
description |
For Clark County students designated At-risk, One-Star designation significantly raises math but not ELA scores |
status |
review |
evidence_strength |
mixed |
newest_evidence |
2025 |
recheck_by |
2028 |
generated |
by process:wiki-ingest on 2026-10-09 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — tanner-2025 |
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