Converting Scaled Predictor Coefficients to Unscaled Values in LMER Models Using R

Resolving the "Error in diag(Lambert) : object 'R_sparse_diag_get' not found" Error in lmer Models: Causes and Solutions

Understanding Nested Fixed Effects in Generalized Linear Mixed Models: A Comprehensive Guide for Statistical Modelers

Mixed ANOVA: Overcoming Errors When Working with Alphabetic Variables in R

Understanding and Addressing the "Number of Levels" Error in Linear Mixed-Effects Models