I do not like about the term MAR, missing at random. Of course, when it has been defined, there are no problems. But the direct interpretation of that term is confusing, since missingness is not random in this case but conditionally in some sense. The term should be something like missing at random conditionally (MARC) or MAR according to covariates. I am not fully satisfied to those terms. What do you prefer? Best regards Seppo Laaksonen
