what is goodness of fit lme4 what model uses random effects and fixed effects how to test the accuracy of r models what is goodness of fit in mixed effects can r squared model be used for fixed effects what measures good fit in r what measure is used to compare mixed effects what is good goodness of fit measures? what measures goodness of fit for mixed effect what measures goodness of fit in mixed models what is goodness of fit measures which measures goodness of fit for mixed models how do i check goodness of fit in r what is goodness of fit measure how to interpret goodness of fit data how to measure the goodness of fit of each model r squared comparing fixed effects how to interpret goodness of fit measures in r what measures are used to evaluate linear mixed effect models can you use r squared for fixed effects