[Rasch] The possibility of Rasch model?

shirin shirazi shirin.shirazi at gmail.com
Tue Mar 25 16:37:28 EST 2008


Dear List Members,


I would be extremely grateful if you could kindly provide me with guidance
about the following issues:


1. Can we apply Rasch model (1PL) to items which elicit yes/no answers with
yes earning 1 and no 0, which in the long run aggregated to a total score
for the examinees?


2. If we have an analytic scoring instrument with the above-mentioned items
and a holistic instrument which allocate scores on a band scale from 0 to 6,
can we investigate the two measuring the same construct according to the
test score linking issue?

Great Regards,

Shirin
Phd Candidate of TESL
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