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Version 1.1 – Updated August 2021

Diversity of student body

Overview

  • Influence: Diversity of student body
  • Domain: School
  • Sub-Domain: School compositional effects
  • Potential to Accelerate Student Achievement: Likely to have a small positive impact
  • Influence Definition: Where there is high representation of various racial, cultural, and socio-economic students within the class or school.

Evidence

  • Number of meta-analyses: 3
  • Number of studies: 55
  • Number of students: 77,029
  • Number of effects: 333
  • Effect size: 0.10

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
Review of Educational Research Bowman USA College Diversity Experiences and Cognitive Development: A Meta-Analysis 2010 Diversity of students in college on achievement 17 77,029 58 0.05
Education Research Review van Ewijk & Sleegers Netherlands The effect of peer socioeconomic status on student achievement: A meta-analysis 2010 Increasing the share of ethnic minority students on achievement of all 13 0 177 0.18
Review of Educational Research Mickelson, Bottia, & Lambert USA Effects of School Racial Composition on K–12 Mathematics Outcomes: A Metaregression Analysis 2013 Racially integrated vs. racially segregated school 25 0 98 0.07
TOTAL/AVERAGE 55 77,029 333 0.10

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 2 3 4 3 3
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