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    Robust standard errors and REML

    Hello everyone, Might anyone know why, when running multilevel (mixed effects) models with REML I get completely different results when I run the same models with robust variances? I originally chose REML because I have a small number of clusters (11). However, when plotting the residuals for...
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    Change in income baseline-endline

    Hello everyone, I have a dataset with personal monthly income at two time points, baseline and endline questionnaire, same people responding each time. Income is a categorical variable: 0-1,000, 1,000-2,000 etc. I can see that between baseline and endline, some respondents' incomes have...