learn.howToCalculate
learn.whatIsHeading
Cohen's d is a standardised effect size for the difference between two group means, expressed in standard deviation units. d=0.2 is small; d=0.5 medium; d=0.8 large.
Guía paso a paso
- 1d = (μ₁ − μ₂) / σ_pooled
- 2σ_pooled = √((σ₁² + σ₂²)/2)
- 3Larger d = more practically significant difference
- 4Allows comparison across studies regardless of measurement scale
Ejemplos resueltos
Entrada
Mean1=50, SD=10 · Mean2=44, SD=10
Resultado
d = 0.6 (medium effect)
(50-44)/10 = 0.6
learn.ctaText
Pruébalo tú mismo →