why use mixed effects models what method should you use for missing data when is data imputation needed what type of modeling is used to assess missed data why use multiple imputation when to use multiple imputation which method is more robust to missing data? why use multiple imputation why i use multiple imputation why use multiple imputation what is the difference between hierarchical modelling and data imputation? how does hierarchical modeling work for missing data difference between hierarchical and imputation what model to use when there is missing data when do you use multiple imputation why use multiple imputation which of the following method would you use for missing data? a. multiple imputation b. hybrid model c. mixed effects modelling d. regression analysis d. multiplication when should i use multiple imputation can you use hierarchical modelling to compare groups why use data imputation