R/statpsych2.R
size.interval.cor.Rd
Computes the sample size required to perform a finite interval test for a Pearson or a partial correlation with desired power. Set s = 0 for a Pearson correlation. The correlation planning value must be a value within the hypothesized finite interval.
size.interval.cor(alpha, pow, cor, s, h)
alpha level for hypothesis test
desired power
planning value of correlation
number of control variables
upper limit of hypothesized interval
Returns the required sample size
size.interval.cor(.05, .8, .1, 0, .25)
#> Sample size
#> [1,] 360
# Should return:
# Sample size
# [1,] 360