I went to a parent-teacher conference today, and got report cards for our 2 kids. They got the equivalent of straight As. The aced all their tests, and the teachers said that they were each reading at 2 grades above their current grade level. They had no behavior or other complaints.
I don't think that it means much. It is an easy school. But I do think that when the objective indications are that the kids are doing very well, the court should figure that maybe both parents had something to do with it.