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Approximates the power of a test for equal correlations in a 2-group design for planned sample sizes

Source: R/statpsych2.R
power.cor2.Rd

Computes the approximate power of a test for equal population Pearson or partial correlations in a 2-group design for planned sample sizes. Set s = 0 for Pearson correlations.

Usage

power.cor2(alpha, n1, n2, cor1, cor2, s)

Arguments

alpha

alpha level for hypothesis test

n1

planned sample size for group 1

n2

planned sample size for group 2

cor1

correlation planning value for group 1

cor2

correlation planning value for group 2

s

number of control variables

Value

Returns the approximate power of the test

Examples

power.cor2(.05, 200, 200, .4, .2, 0)
#>      Power
#>  0.5919682

# Should return:
#     Power
# 0.5919682