Hello,
I've recently analysed some old data with the Winsteps software (that performs Rasch measurement and analysis), using a dozen anchor items from a previous test.I can't find any piece of information about the specific measure values taken by anchor items : in my data, it is 0, 1 or -1.

How should I interpret those data ?
Thanks in advance for your help !
Regards,
Keith

You're in the wrong forum, this is for Windows customization software. What you want is

https://www.winsteps.com/index.htm

So sorry. Thanks for your instruction

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Academic types sure are distracted : you're in the wrong website and forum.

This forum is for Winstep Windows customization software. What you want is

Winsteps and Facets: Rasch Analysis + Rasch Measurement Software

Look carefully *at the bottom* of that page for a link to a Rasch Measurement forum and also a contact email address.