dicho.d.z: cohen's d from dichotomizing/extreme group design to z

In phoebehlam/michaela: convert statistical metrics for meta-analytic purpose

cohen's d from dichotomizing/extreme group design to z

Description

cohen's d from dichotomizing/extreme group design to fisher's z
see pustejovsky, 2014. psychological methods.
returns z based on taylor series approximation

Usage

dicho.d.z(d, p1, p2, n1, n2, k, dir)

Arguments

d	cohen's d
p1	cutoff percentile for group 1 (sample-based, please see other formulas for population-based in pustejovsky, 2014)
p2	cutoff percentile for group 2 (sample-based, please see other formulas for population-based in pustejovsky, 2014)
n1	cell size of group 1
n2	cell size of group 2
k	kth term for taylor series approximation (enter 1 to 5)
dir	if cohen's d is in absolute value, provide the empirical direction: +1 for positive associations (e.g., group 1 - group 2 >= 0) and -1 for negative associations (e.g., group 1 - group 2 < 0)

Examples

dicho.d.z(.80, 1/3, 1/3, 15, 15, 5, -1)

phoebehlam/michaela documentation built on Oct. 23, 2024, 4:10 p.m.