[Rasch] Plain language articles about DIF interpretation issues?

David Andrich david.andrich at uwa.edu.au
Wed Jun 10 10:46:55 AEST 2015

Imogene: These articles might help a bit - they are concerned with the inevitable appearance of artificial DIF in most methods of detecting DIF.

Andrich, D., & Hagquist, C. (2012) Real and Artificial Differential Item Functioning. Journal of Educational and Behavioral Statistics, 37 (9), 387 - 416.

Andrich, D. & Hagquist, C. (2015) Real and Artificial Differential Item Functioning in Polytomous Items. Educational and Psychological Measurement. 75 (2) 185-207.

David Andrich, BSc MEd W.Aust., PhD Chic, FASSA
Chapple Professor david.andrich at uwa.edu.au<mailto:david.andrich at uwa.edu.au>
  Graduate School of Education
The University of Western Australia
M428, 35 Stirling Highway,
Crawley, Western Australia, 6009
Telephone: +61 8 6488 1085;   Fax: +61 8 6488 1052

From: rasch-bounces at acer.edu.au [mailto:rasch-bounces at acer.edu.au] On Behalf Of Imogene Rothnie
Sent: Wednesday, 10 June 2015 7:17 AM
To: rasch at acer.edu.au
Subject: [Rasch] Plain language articles about DIF interpretation issues?

Dear All,

I am looking for some plain language articles about the complexity around identifying (true) DIF . I've been reading (Everett?) Smith's chapter in "Introduction to Rasch Measurement " edited by same and I have a bare grasp of the issues presented. I was hoping someone could recommend a few review articles or chapters that could clarify and expand on the issues he raises and conclusions made, especially with respect to the argument that sometimes items that appear neutral after a DIF  analysis may actually be biased. I don't have a degree in mathematics..am much better with words ;-) , so am trying to look for articles that have a smattering rather than a littering of formulae to make the point.



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