[Rasch] Re:Urgent question about high stakes and normality

Looveer, Juho Juho.Looveer at det.nsw.edu.au
Tue Jan 31 09:24:28 EST 2006


As I said, that was a previous process, started several decades prior.  The intention then was to establish equity and comparability across courses, not necessarily parity.  
The problem WAS that it was not possible to compare cohorts or results across time, nor tell whether there had been improvement or not.  Results were really only comparable within any one course for that cohort.  And with secure tests, it was not feasible to run any equating tests.
 
The system has now changed to one based on standards, with the intention of maintaining standards within courses across time, and hoping to have parity across courses and subjects.  It appears to be working well at this stage.
 

Dr Juho Looveer

________________________________

From: Agustin Tristan [mailto:ici_kalt at yahoo.com] 
Sent: Tuesday, 31 January 2006 5:50 AM
To: iasonas lambrianou; Looveer, Juho; rasch at acer.edu.au
Subject: RE: [Rasch] Re:Urgent question about high stakes and normality



It has been proposed to normalize all the subjects to a mean and st.dev. in such a way that everything is equal: ALL the topics and across the time you will have the same mean and the same st.dev...Which is the mean in math? 50, and history? 50, last year? 50, i can predict that mean in math in 2007 will be 50, as well as the mean in history.
How can we show improvement or decrease in academic results? 
Please let us know.
regards
Agustin



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