Recovery high school attendance may improve absenteeism, abstinence, and reduce marijuana and other drug use, based on a single quasi‐experimental study with serious risk of bias¶
Claim · All claims
Evidence · 1 study · quant-synthesisr1·q2·i2medium
Currency · newest study 2018 · checked against its sources 2026-10-20 (automated, 1 of 1 entry) · 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.
q2 i2 In the one included quasi‐experimental study, students in the RHS condition reported improvements in absenteeism (0.56, 95% CI [0.25, 0.87]), abstinence from alcohol/drugs (OR = 4.36), marijuana use (0.51), and other drug use (0.45) after adjusting for pretest values. → Hennessy E. A. 2018
Evidence¶
Hennessy E. A. 2018¶
Hennessy E. A., Tanner‐Smith E. E., Finch A. J., Sathe N. A., Kugley S. A. (2018). Recovery schools for improving behavioral and academic outcomes among students in recovery from substance use disorders: a systematic review. Campbell Systematic Reviews. https://doi.org/10.4073/csr.2018.9
q2 · i2 · quant-synthesis · r1
The review's Results section reports the single eligible quasi‐experimental pretest‐posttest study of U.S. high school students (194 participants), with pretest‐adjusted effect sizes favoring RHS students on absenteeism, abstinence, marijuana use, and other drug use; the confidence intervals exclude zero for the three standardized mean differences and exclude one for the abstinence odds ratio.
"However, students in the RHS condition reported improvements in absenteeism (= 0.56, 95% CI [0.25, 0.87]), abstinence from alcohol/drugs (OR = 4.36, 95% CI [1.19, 15.98]), marijuana use (= 0.51, 95% CI [0.20, 0.82]), and other drug use (= 0.45, 95% CI [0.14, 0.76])."
Discussion¶
Related Claims¶
- No eligible studies of collegiate recovery communities were identified, so there is no rigorous evidence on CRC effectiveness — related
- Recovery high schools were no better or worse than comparison high schools on grade point average, truancy, or alcohol use in the single included study — related
- Mandatory-random student drug testing reduces high school students' reported past-30-day substance use relative to schools without MRSDT — related
- National estimates indicate nearly half of students report having ever used illicit drugs and most report having drunk alcohol before leaving high school — related
- Positive developmental relationships and school connectedness protect against violence, absenteeism, and substance abuse, and increase threat reporting — related
- School-based prevention practices appear effective in reducing alcohol and drug use, dropout and nonattendance, and other conduct problems, with small average effects and considerable heterogeneity across studies — related
Page metadata
| Field | Value |
|---|---|
type |
claim |
id |
rhs-improves-absenteeism-abstinence-drug-use-single-qed |
title |
Recovery high school attendance may improve absenteeism, abstinence, and reduce marijuana and other drug use, based on a single quasi‐experimental study with serious risk of bias |
description |
Recovery high school attendance may improve absenteeism, abstinence, and reduce marijuana and other drug use, based on a single quasi‐experimental study with serious risk of bias |
status |
review |
evidence_strength |
weak |
newest_evidence |
2018 |
source_checked |
2026-10-20 |
generated |
by process:wiki-ingest on 2026-10-08 |
trust |
unverified — no one has confirmed this page's content |
sources |
1 — hennessy-e-a-2018 |
Frontmatter is the page's machine-readable record — see the Schema & Guide.