My comments (identified with "--->") on previous comments:

 the only reason why 
alphabetizing or ... using numbers in order ... would be to make it
simpler 
for a student to find his/her score ...

---> That may be, but a problem with listing in alphabetical order,
even without names, is that readers of the list might be able to
associate grades with specific students (and I gave some examples).

it is doubtful that having a list ordered with last 4 digits of a
student 
number is going to offer any casual observer ... even a student in a
class 
... the ability to identify anyone scores

---> It's not only the casual observer we have to worry about, but the
observer who knows the class.  I gave some examples where identities
could be known, or accurately guessed, if the observer knew the names of
many or all the students in the class. 

keeping scores secret is not the criterion ... it is making them 
unidentifiable to the casual observer ...

--->  Not so.  The law says student academic records are to be kept
from anyone, casual observer or not (except, of course, persons with an
academic right to know--like academic advisers).

Jerrold H. Zar, Ph.D.
Department of Biological Sciences
Northern Illinois University
DeKalb IL 60115-2854




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