[Rasch] Logit to positive integer transformation

Bond, Trevor trevor.bond at jcu.edu.au
Tue Oct 31 15:26:54 AEDT 2017


Thanks, Tim
Clearly my memory is failing ;)
TGB

Prof Trevor G BOND

On 31 Oct 2017, at 3:22 pm, Tim Mcnamara <tfmcna at unimelb.edu.au<mailto:tfmcna at unimelb.edu.au>> wrote:

Thanks so much, Trevor – found your useful discussion in Ch 10.
Tim


From: Rasch <rasch-bounces at acer.edu.au<mailto:rasch-bounces at acer.edu.au>> on behalf of "Bond, Trevor" <trevor.bond at jcu.edu.au<mailto:trevor.bond at jcu.edu.au>>
Reply-To: "rasch at acer.edu.au<mailto:rasch at acer.edu.au>" <rasch at acer.edu.au<mailto:rasch at acer.edu.au>>
Date: Tuesday, 31 October 2017 at 3:02 pm
To: "rasch at acer.edu.au<mailto:rasch at acer.edu.au>" <rasch at acer.edu.au<mailto:rasch at acer.edu.au>>
Subject: Re: [Rasch] Logit to positive integer transformation

Dear Tim
Rescaling is included in the Winsteps manual, and covered in B&F2 or 3, Chapter 11
Best
T
Prof Trevor G BOND

On 31 Oct 2017, at 2:48 pm, Tim Mcnamara <tfmcna at unimelb.edu.au<mailto:tfmcna at unimelb.edu.au>> wrote:
Hi all, a simple question, but I can’t seem to find a discussion of it – how do we convert logit measures into more accessible scores, as positive integers, ideally on a simple numerical scale?  What are some examples of Rasch-based scales which have done this, especially in the language/literacy area? (I can think of TORCH and Lexiles, but some more recent ones would be good). I need to write some text about it for a lay audience, so the explanation can’t be too technical.
Thanks,
Tim

Tim McNamara FAHA FAcSS
Redmond Barry Distinguished Professor, School of Languages and Linguistics, The University of Melbourne
President, American Association for Applied Linguistics (AAAL)


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