Hi
we run item analysis on the whole cohort since our scanner pumps out discrimination, point bi-serial and p-value
I don't see any problem with using only 10% of the group either
jim
On Fri, Nov 30, 2012 at 8:13 AM, Jenny Morris <[log in to unmask]> wrote:
Dear All
As this is the first time we have been using TBL I plan to run an item analysis on the questions we are using. We have around 300 students in the group and I was considering basing this analysis on 10% of the group. I’d welcome feedback from others who have undertaken similar work.
Thanks and best wishes
Jenny
Dr Jenny Morris
Associate Professor (Senior Lecturer) in Health Studies
Faculty of Health, Education and Society
University of Plymouth
Knowledge Spa
Treliske
Truro TR1 3HD
Cornwall
Tel: 01872 256461
Web: http://www.plymouth.ac.uk/faculties/health
‘High quality education for high quality care’
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Jim Sibley
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NEW Home Phone 604-564-1043
Work 604-822-9241