adjust_n_r: Adjusted sample size for a non-Pearson correlation coefficient for use in a meta-analysis of Pearson correlations

Description

This function is used to compute the adjusted sample size of a non-Pearson correlation (e.g., a tetrachoric correlation) based on the correlation and its estimated error variance.
This function allows users to adjust the sample size of a correlation corrected for sporadic artifacts (e.g., unequal splits of dichotomous variables, artificial dichotomization of continuous variables) prior to use in a meta-analysis.

Schmidt, F. L., & Hunter, J. E. (2015).
Methods of meta-analysis: Correcting error and bias in research findings (3rd ed.).
Thousand Oaks, CA: SAGE. https://doi.org/10/b6mg. Equation 3.7.