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Version 1.1 – Updated August 2021

Middle school interventions

Overview

  • Influence: Middle school interventions
  • Domain: School
  • Sub-Domain: School compositional effects
  • Potential to Accelerate Student Achievement: Likely to have a small positive impact
  • Influence Definition: These interventions are aimed particularly towards middle school young adolescents. Based on the Turning Points report, these include interventions aimed to: create a community of learning; teach a core of common knowledge; ensure success for ALL students; empower teachers and administrators in shared decision-making; prepare teachers to be certified in middle grades education; improve academic performance through health and fitness; reengage families in the education of young adolescents; and connect schools with the community.

Evidence

  • Number of meta-analyses: 1
  • Number of studies: 38
  • Number of students: 28,624
  • Number of effects: 22
  • Effect size: 0.18

Meta-Analyses

Meta-Analyses
Journal Title Author First Author's Country Article Name Year Published Variable Number of Studies Number of Students Number of Effects Effect Size
Unpublished Theses Grant USA A meta-analysis of school-based interventions for middle schoolers: Academic, behavioral, and social outcomes. 2011 Middle school interventions on achievement 38 28,624 22 0.18
TOTAL/AVERAGE 38 28,624 22 0.18

Confidence

The Confidence is the average of these four measures, each divided into five approximately equal groups and assigned a value from 1 to 5 based on the following criteria:

  • Number of Meta-analyses
    • 1 = 1
    • 2 = 2–3
    • 3 = 4–6
    • 4 = 7–9
    • 5 = 10+
  • Number of Studies
    • 1 = 1–10
    • 2 = 11–50
    • 3 = 51–200
    • 4 = 201–400
    • 5 = 400+
  • Number of Students
    • 1 = 1–2,500
    • 2 = 2,501–10,000
    • 3 = 10,000–20,000
    • 4 = 20,000–100,000
    • 5 = 100,001+
  • Number of Effects
    • 1 = 1–100
    • 2 = 101–300
    • 3 = 301–600
    • 4 = 601–1,200
    • 5 = 1,200+
Confidences
Number of Meta-Analyses Number of Studies Number of Students Number of Effects Overall Confidence
Confidence Factor 1 2 4 1 2
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