[Rasch] Measure from one item response

Stuart Luppescu slu at ccsr.uchicago.edu
Sat Sep 22 08:06:31 EST 2012


Fellow Raschies, I have what I hope is a quick question: Is it possible
to estimate a person measure based on one response to one item, given
the item and step difficulty? For example, say for an item with
difficulty 0.1; and step difficulties 0, -1.5, 0, 1.5; a person responds
'3'. Can we know that person's measure just using a pocket calculator or
paper and pencil? How about if the response is '1' or '4'?

Thanks.
-- 
Stuart Luppescu <slu at ccsr.uchicago.edu>
University of Chicago
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