[Rasch] split half reliability

Tom Conner connert at msu.edu
Fri May 22 16:27:15 AEST 2015

Parisa,  I don't know the answer to your specific question.  But I do 
know that split half reliability is a bogus measure.  It tells you 
nothing that is not contained in the variance.  I recommend you not use 
it unless a journal requires it.


On 5/22/15 4:39 AM, Parisa Daftari Fard wrote:
> Dear Friends,
> I apologize to interrupt the ongoing discussion. I have been reading articles on dynamic assessment. One facial difference between such papers and others is that they reported split half reliability instead of Alpha. Is this due to the fact that DA is half NRT and Half CRT? I appreciate it if you help me with your incisive suggestion and readings.
> Cordially yours
> Parisa
> Parisa Daftarifard
> IAU (South Tehran Branch)
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Tom Conner
Professor Emeritus
Department of Sociology
Michigan State University

"I contemplate with sovereign reverence that act of the whole American people which declared that their legislature should 'make no law respecting an establishment of religion, or prohibiting the free exercise thereof,' thus building a wall of separation between Church & State." Thomas Jefferson

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