[Rasch] Secondary to: Test equating using TCCs and Item anchor files

Bond, Trevor trevor.bond at jcu.edu.au
Wed Aug 3 15:50:05 EST 2011


Dear Imogene
B&F2 provides an XL spreadsheet based on its chap 5 which many colleagues find useful
It’s based on Wright and Masters and uses combined SEs to show (in)variance of estimates
Best
TGB


On 3/08/11 1:49 PM, "Imogene Rothnie" <irothnie at usyd.edu.au> wrote:

PS : further to my last email what procedures are commonly used for testing the SIGNIFICANCE of difference in test difficulties and student performance combined over two linked tests with different student cohorts.
Thanks
Imogene

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