[Rasch] Help on Newton Raphson Method
Mike Linacre (RMT)
rmt at rasch.org
Fri Jul 9 08:02:10 EST 2010
Thank you for your question, Ranganath.
www.rasch.org/rmt/rmt102t.htm shows Netwon-Raphson estimation of Rasch
ability measures for response strings based on known item difficulties.
At 7/8/2010, you wrote:
>I am working on implementing the theta estimation of an examinee given his
>response vector to a test. I have read that Newton Raphson method gives a
>reliable estimation of the ability estimates. Can anyone suggest the
>reading material for implementing the NR method with step by step explanation.
Editor, Rasch Measurement Transactions
rmt at rasch.org www.rasch.org/rmt/ Latest RMT: 23:4 Spring 2010
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