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Use this tag for any *on-topic* question that (a) involves `R` either as a critical part of the question or expected answer, & (b) is not *just* about how to use `R`.

1 vote

T-test with nested data

It is hard to tell what you actually want to do. In order to test the differences in willingness to pay and formulate the model you have to construct the model in a way that it meets your research que …
Julian's user avatar
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5 votes
2 answers
2k views

Mathematical notation (or formula) of mixed effect models

I am unsure how the correct mathematical notation of two mixed model I've estimated in R should look like. The data consists of test scores of students that were in different classes. … Two models were estimated to see if test scores are on average different (1) and if the stuy methods had a significant effect on test score (2) The models look in R look like this: Test_score ~ Study_method …
Julian's user avatar
  • 383