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Section Pre-Equating in the Presence of Practice Effects

Educational Testing Service

Section pre-equating (SPE) is a new method for equating tests that was developed in response to test disclosure legislation. It is designed to equate a new test to an old test prior to the actual use of the new test, and makes extensive use of experimental sections of a testing instrument. This paper extends the theory behind SPE to allow for the effects of practice on both the old and the new tests, and gives a unified and generalized account of SPE.

Key Words: Test equating • pre-equating • EM algorithm • practice effects • incomplete data • linear equating • test disclosure

Journal of Educational and Behavioral Statistics, Vol. 10, No. 2, 109-120 (1985)
DOI: 10.3102/10769986010002109


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