Abstract
A crucial part of statistical analysis is evaluating a model’s quality and fit, or performance. During analysis, especially with regression models, investigating the fit of models to data also often involves selecting the best fitting model amongst many competing models. Upon investigation, fit indices should also be reported both visually and numerically to bring readers in on the investigative effort. The performance R-package (R Core Team, 2021) provides utilities for computing measures to assess model quality, many of which are not directly provided by R’s base or stats packages.
Dominique Makowski
Lecturer in Psychology
Trained as neuropsychologist and CBT psychotherapist, I am currently working as a lecturer at the University of Sussex, on the neuroscience of reality perception.