[Rasch] PISA critique in TES - a competition?

Mike Linacre mike at winsteps.com
Mon Sep 29 08:12:36 EST 2014

Yes, Jason.

Are PISA, TIMSS and similar studies really intended to advance education 
worldwide or to advance political agendas? If the answer is "political 
agendas" then the most politically-acceptable statistical methodologies 
are the ones to choose. If the answer is "advance education" then 
everyone, including the politicians, should be working towards 
discovering and using the most effective statistical methodologies.

According to www.rasch.org/software.htm there are now seven 
Rasch-related R modules. They are free. Wonderful! But there are 5,889 R 
modules. We will need more Rasch R modules before we make a noticeable 

Mike L.

On 9/28/2014 21:21 PM, liasonas wrote:
> Mike, this is a great idea. But can the policy makers and the 
> politicians allow us (the academics) to spoil their new toys ( the 
> international studies)? The politicians use us (the academics) to 
> produce data and reports which then the politicians use to carry out 
> their little in-fightings and political debates.
>  We cannot afford to angry them, because we need their money and 
> support. Maybe we need to train them on how to use our data most 
> appropriately and sensibly. Pisa and Timms tables, for example, can be 
> useful, but they are not the equivalent of The Bible.
> Having said all that, we need to thank Margaret and the other 
> researchers for providing the methodological tools and packages (have 
> you all had a glance of the TAM package on the R platform?). But we 
> also need to thak Paul for seeding the seeds of doubt, because this is 
> the only way for science to prosper.
> Jason

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