>Students were able to indicate if they had prepared through the use of school courses, commercial courses, tutoring, or a variety of preparatory materials. In

>Students were able to indicate if they had prepared through the use of school courses, commercial courses, tutoring, or a variety of preparatory materials. In what follows, a coached student is defined as one that reported participating in a commercial preparatory course. Is there any indication that they actually broke down any further, or is this just limited to the impact of average coaching and thus not a good representation of those who receive the top tier coaching?