The Effectiveness of Life Skills-Based School Violence Prevention Programs in Secondary Education: A Systematic Review and Meta-Analysis
Konstantina Trimmi e outros, 2026 · Children
Life skills-based violence prevention curricula in secondary schools reduced violent behaviors by an average standardized effect of -0.27.
Estimativa · Hedges' g
-0,265 [-0,488; -0,0425]
Hedges' g
p = 0.0196
- Desenho
- Meta-análise. Three-level random-effects meta-analysis of 18 interventional studies
- População
- Secondary school students aged 12–18 across 9 countries, published between 2005 and 2025
- Amostra
- 18 · studies contributing 56 effect sizes
Onde está o número
3. Results > 3.2. Meta-Analysis Results; Section 3.2 'Meta-Analysis Results', first paragraph
The pooled effect size was statistically significant (g = −0.2652, SE = 0.1136, 95% CI [−0.4879, −0.0425], z = −2.3336, p = 0.0196), indicating a small to medium reduction in violent behaviors (Figure 2).
Contexto
What changed: Implementation of secondary school life skills curricula targeting emotional regulation, conflict resolution, and communication. Comparison: Control or standard curriculum groups across 18 randomized and quasi-experimental studies. Limits: Extreme between-study heterogeneity (I-squared 99.2%), widespread lack of trial pre-registration, reliance on unblinded student self-reports, and prediction intervals crossing zero.
Caminho no grafo
- FamíliaInformação e persuasão
- TipoCapacitação e aconselhamento
- EixoPaz e justiça
MAGI só cita evidência deste instrumento
Lugares do estudo
- United States · País · US
- Spain · País · ES
- Brazil · País · BR
- Canada · País · CA
- India · País · IN
- Japan · País · JP
- South Korea · País · KR
- Pakistan · País · PK
- Thailand · País · TH
- Licença
- CC-BY
- Revisão
- Extraído por máquina, não revisadoExtraído por: gemini-3.8-flash, 2026-10-23