Table 15.
Cluster‐robust meta‐regression for public versus private Montessori setting for nonacademic effect sizes.
| Effect (n of effect sizes) | Hedges’ g | 95% CI of g | df | p |
|---|---|---|---|---|
| Private Montessori (34)a | 0.43 | (0.18, 0.67) | 6.63 | 0.005 |
| Public Montessori (36) | −0.26 | (−0.52, 0.06) | 8.55 | 0.100 |
Note: N of studies = 13, N of effect sizes = 70, assumed ρ = 0.8, I 2 = 78.75. Cluster‐robust estimates with df < 4.00 should be interpreted with caution (Tanner‐Smith, Tipton, & Polanin, 2016). Positive effect sizes favor Montessori over traditional education.
Abbreviation: CI, confidence interval.
a
Reference category/intercept.