MAd (version 0.8-3)

mean_to_d2: Means with Pooled SD to Standardized Mean Difference

Description

Converts raw mean scores with pooled standard deviation from the primary study to a standardized mean difference (d).

Usage

mean_to_d2(m.1, m.2, s.pooled, n.1, n.2)

Value

d

Standardized mean difference (d).

var.d

Variance of d.

Arguments

m.1

Mean of group one.

m.2

Mean of group two.

s.pooled

Pooled standard deviation.

n.1

Sample size of group one.

n.2

Sample size of group two.

Author

AC Del Re & William T. Hoyt

Maintainer: AC Del Re

References

Borenstein (2009). Effect sizes for continuous data. In H. Cooper, L. V. Hedges, & J. C. Valentine (Eds.), The handbook of research synthesis and meta analysis (pp. 279-293). New York: Russell Sage Foundation.

See Also

d_to_g, mean_to_d, t_to_d, f_to_d, p_to_d1, p_to_d2, ancova_to_d1, ancova_to_d2, tt.ancova_to_d, f.ancova_to_d, r_to_d, p.ancova_to_d1, p.ancova_to_d2, lor_to_d, prop_to_or, prop_to_d, r_from_chi, r_from_d, r_from_d1, r_from_t