In article <[EMAIL PROTECTED]>, Lise DeShea <[EMAIL PROTECTED]> wrote: >I agree with Dennis. In fact, I show a stem-and-leaf display on an overhead >projector -- when I have a class of more than about 15 students. With a smaller >class, they could figure out which student had which score. I think it shows the >value of graphing data and reinforces an understanding of one kind of graph they have >to learn in my class. Plus, after collecting each quiz I immediately hand out a copy >of the key, so that they can learn from their mistakes while the quiz is fresh in >mind. By the tim >e they see the stem-and-leaf, it's not much of a surprise how they did.
>From: Dennis Roberts <[EMAIL PROTECTED]> >To: Stan Brown <[EMAIL PROTECTED]>, [EMAIL PROTECTED] >after every test ... i update my gradebook and, with last 4 digits of >student # ... put these on my door >in addition, i put the desc stats and, a simple frequency tally >i see nothing wrong with this AND, it is the only efficient way to >communicate to the students about their scores and how the class did ... >the operative here is that no one person knows what any other person does Many of us at Purdue used to do this, but we now have a directive that this is not adequate to preserve the confidentiality of a grade. -- This address is for information only. I do not claim that these views are those of the Statistics Department or of Purdue University. Herman Rubin, Deptartment of Statistics, Purdue University [EMAIL PROTECTED] Phone: (765)494-6054 FAX: (765)494-0558 . . ================================================================= Instructions for joining and leaving this list, remarks about the problem of INAPPROPRIATE MESSAGES, and archives are available at: . http://jse.stat.ncsu.edu/ . =================================================================
