This package provides functions for standardizing neuropsychological test results using T-scores adjusted for age, sex, and education. It is an extension of the ntrs package.
The main function, std_using_tscores(), takes raw scores from various neuropsychological tests and applies the appropriate T-score adjustments based on demographic factors. The package includes specific implementations for different tests, such as the ANIMALS test, and ensures that the standardized scores are within a valid range.
Disclaimer
This R package started as the backbone of the visualization tool included in the R package
NpsychAssessmentTool, but we quickly realized it might be of use as a standalone tool for other researchers. It was therefore decided to package the most important tools and methods separately, which resulted in this package. None of the implementations here should be used in commercial products nor as standalone medical advice. Also note this package is distributed under the MIT Licence, meaning the software is provided “asis” and the authors are not liable for any claim, damages or other liabaility arising from this software. Also, note that the authors behind the T-scores implemented for some test scores request that the scores are not edited, modified, translated or otherwise part of derivative work without the prior written permission of Mayo Clinic. For more on the use of the T-scores, contact Nikki Stricker and/or see the Mayo Clinic Study of Aging website for more on data sharing.