R: Cohen's d from Jacob Cohen's textbook (1988)

cohen_d_from_cohen_textbook

R Documentation

Cohen's d from Jacob Cohen's textbook (1988)

Description

Calculates Cohen's d as described in Jacob Cohen's textbook (1988), Statistical Power Analysis for the Behavioral Sciences, 2nd Edition Cohen, J. (1988) \Sexpr[results=rd,stage=build]{tools:::Rd_expr_doi("10.4324/9780203771587")}

Usage

cohen_d_from_cohen_textbook(
  sample_1 = NULL,
  sample_2 = NULL,
  data = NULL,
  iv_name = NULL,
  dv_name = NULL
)

Arguments

`sample_1`	a vector of values in the first of two samples
`sample_2`	a vector of values in the second of two samples
`data`	a data object (a data frame or a data.table)
`iv_name`	name of the independent variable
`dv_name`	name of the dependent variable

Value

the output will be a Cohen's d value (a numeric vector of length one)

Examples

cohen_d_from_cohen_textbook(1:10, 3:12)
cohen_d_from_cohen_textbook(
  data = mtcars, iv_name = "vs", dv_name = "mpg"
)