[ww-devel] Big Data Table

[Arnold Pizer]

Hi,

I think people will probably want some additional information that relates
to the data.  Also I think it would be very good to get some input from
people who are actually interested in using the data about what they (and
others doing similar studies) may want.  I think we should preserve as much
of the data as possible while making sure it is anonymous.  Some of the
items below could be generated almost automatically or filled in by someone
at the institution generating the data.  Note that this data may be used at
different levels and different levels require different amounts of
anonymity.  For example if an instructor is using it for his or her own
courses, very little anonymity is needed.  It might be used by a
department, dean, university or (if shared externally as we hope it will
be) by people outside the institution. More anonymity will be needed as the
person using the data gets more remote.  But e.g. a dean may want to know
who actually taught the course and an instructor may want to know student
names.  We may want to have a sequence of anonymity filters.

Here is a list of things I can think of off the top of my head that someone
may want to know.   As above some of the items below will be impure or
missing.

Institution type (chose from a list such as University, College, Community
College, professional School, HS, etc)
Department in which course was taught (again generic names)
Course Name (again chose from a list)
Type of instruction (lecture, online, flipped classroom, ?)
Student Gender (maybe guessed from name)
Student level, maybe background
Information relating to instructor (I have no idea what is relevant, maybe
level (adjunct, etc), gender, experience, ?)

I am assuming you will replace the student ID with a globally unique id but
it would be nice if this globally unique id followed the student within an
institution so that people could follow student progress across courses.

One simple thing I would want to learn from the data is which OPL problems
are most used and a rating on their degree of difficulty.

What if someone wants to study the question "Do high teaching evaluation
scores for an instructor correlate in any way with student performance on
WeBWorK".

I think it would be very useful to generate some real questions people may
want to ask.

Arnie




On Mon, Aug 18, 2014 at 1:49 PM, Davide P. Cervone <dpvc at union.edu> wrote:

> > -  Answer Correct String: String of 1's, 0's corresponding to
> correctness of answers
>
> Answers can have decimal values (corresponding to partial credit).
> Technically, they can also have values bigger than 1, though that is rare.
>
> I know that the Show Past Answers data uses this approach, but when that
> was developed, partial credit wasn't allowed, and it was never updated.
>
> Davide
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-- 
Prof. Arnold K. Pizer
Dept. of Mathematics
University of Rochester
Rochester, NY 14627
(585) 766-8812
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