When using the predefined report/ meeting reports, the results of the query are meeting records.

So after doing a meeting report query, your found set of records, which are 'student records' will not change.

If you want to do research on the results of a meeting reports query, one has to use the 'choose students' button to do the find into your found set of records.

Once you have that found set updated, then you can use statistical reports on that new found set.