"Robert J. MacG. Dawson" wrote:
>
> Alan McLean wrote:
> >
> > A number (>10!) of years ago I directed a subject with assignments and
> > of course had this problem. (I say of course because there is always
> > some variation among markers!) I went through an incredible amount of
> > heart burn, trying to do the best thing for the students. I started by
> > taking into account both class means and class standard deviations,
> > using the linear transformation referred to before. Then I decided that
> > the SD had very little variation, and simply leveled the class means.
>
> Our usual solution in my department is (unconsciously?) based on the
> dictum that a good experimental design ahead of time is better than
> fancy fudging afterwards.
>
> We rotate the graders among the sections by week, so that each student
> gets graded roughly the same number of times by each grader. (We also do
> the same thing on the final exams, with each instructor grading one or
> more questions across the entire multisection course.
>
> We also remove confounding variables by not grading the assignment, but
> a weekly quiz based on the assignment. [However, in many courses it is
> not a pure quiz, but a part of the learning process in which they are
> permitted to ask for hints and have work checked before submitting it.
> Then they get 85% of their course grade from strictly-invigilated,
> closed-book or limited-note exams. It seems to work.]
This sounds suspiciously like corroboration of my observation that the
proper role of assignments is in learning - then use a quiz, test or
exam for the actual assessment.
Alan
>
> -Robert Dawson
> .
> .
> =================================================================
> Instructions for joining and leaving this list, remarks about the
> problem of INAPPROPRIATE MESSAGES, and archives are available at:
> . http://jse.stat.ncsu.edu/ .
> =================================================================
--
Alan McLean ([EMAIL PROTECTED])
Department of Econometrics and Business Statistics
Monash University, Caulfield Campus, Melbourne
Tel: +61 03 9903 2102 Fax: +61 03 9903 2007
.
.
=================================================================
Instructions for joining and leaving this list, remarks about the
problem of INAPPROPRIATE MESSAGES, and archives are available at:
. http://jse.stat.ncsu.edu/ .
=================================================================
