[Rasch] Use of misfit as information and logits in MRC
Mike Linacre (RMT)
rmt at rasch.org
Fri Jan 16 12:29:20 EST 2009
Thank you for your question, Fernando.
Kaiser & keller use both demographic groupings and latent classes to
investigate item difficulty (called "behavior difficulty" in the paper
because the items relate to behaviors).
Your interest appears to be in demographic groups. If so, then a standard
Rasch analysis combined with a DIF analysis (which produces DIF size in
logits) will produce the findings that you are looking for. A Mixed Rasch
model is not needed. You can then use conventional statistical techniques
(such as regression) to investigate the DIF logits.
Does this help?
At 1/15/2009, you wrote:
>I'm interested in an application of Rasch analysis similar to:
>Kaiser, F. G., & Keller, C. (2001). Disclosing Situational Constraints to
>Ecological Behavior: A Confirmatory Application of the Mixed Rasch Model.
>European Journal of Psychological Assessment, 17(3), 212-221.
Editor, Rasch Measurement Transactions
rmt at rasch.org www.rasch.org/rmt/ Latest RMT: 22:2 Autumn 2008
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Rasch