[Rasch] a query on comparability across time

Iasonas Lamprianou liasonas at cytanet.com.cy
Mon Mar 19 17:18:28 AEDT 2018

Thank you Mike, highly appreciated!

----- Original Message -----
From: "Mike Linacre" <mike at winsteps.com>
To: rasch at acer.edu.au
Sent: Monday, 19 March, 2018 08:07:26
Subject: Re: [Rasch] a query on comparability across time

That's good, Iasonas.

The items are not the same, but perhaps they are similar enough for 
"virtual equating" to be feasible -

Mike L.

On 3/19/2018 2:42 PM, Iasonas Lamprianou wrote:
> Good morning Mike (it is morning in this part of the word!).
> I also have access to item-level data (but as I said, it is not possible to use similar items from one year to the next).
> Thank you so much Mike for your email.
> Iasonas

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