Explore Implemented Methods and Combination with Variables — std

Helper function to find implemented methods for specific variable, or find variables that can be standardized using specific method/version combo.

Usage

std_methods(var_name, method, version)

var_name: NACC variable name for which to return available method/version combos (much be omitted if method/version specified)
method: method to look up. Must be one of norms, regression, or T-score
version: version of method to look up. Either nacc (indicating the use of published methods), updated (indicating the use of updated versions of the published methods, using data available as of June 2024), or nacc_legacy (only for variables included in UDS-2, but dropped for UDS-3). Ignored if method is T-score.