MBESS (version 4.9.3)

transform_r.Z: Transform a correlation coefficient (r) into the scale of Fisher's \(Z^\prime\)

Description

This function transform a correlation coefficient into the scale of Fisher's \(Z^\prime\).

Usage

transform_r.Z(r)

Value

returns a value on the scale of Fisher's \(Z^\prime\), also called Fisher's \(Z\), from a given correlation value.

Arguments

r

correlation coefficient (between two variables)

Author

Ken Kelley (University of Notre Dame; KKelley@ND.Edu)

Details

This function is typically used in the context of forming a confidence interval for a population correlation coefficient. Note that, in that situation, the two variables are assumed to follow a bivariate normal distribution (e.g., Hays, 1994).

References

Kelley, K. (2007). Confidence intervals for standardized effect sizes: Theory, application, and implementation. Journal of Statistical Software, 20(8), 1--24.

Hays, W. L. (1994). Statistics (5th ed). Fort Worth, TX: Harcourt Brace College Publishers)

See Also

transform_Z.r, ci.cc

Examples

Run this code
# From Hays (1994, pp. 649--650)
transform_r.Z(.35)

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