Symposium: The Development of an Item Bank in Mathematics Using the Rasch Model
Keywords:
Rasch model, Mathematics, Latent trait, Educational assessment, Computerized testAbstract
Item banks for use in the development of tests keyed to the provincial mathematics curriculum were developed at the Grade 3/4, 7/8, 10/11 levels. The Rasch simple logistic model was used to calibrate all of the items within each of the three banks on a common scale of difficulty. A computerized data base was developed to store the items, to facilitate modification of the item banks as required, and to produce camera-ready tests consisting of items meeting criteria determined by the user. To date the item banks have been used to produce eleven tests published by the Ministry of Education and as a source of items for the 1981 B.C. Mathematics Assessment.
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