The Reliability of Scores from the 1992 Vermont Portfolio Assessment Program
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RAND, as part of the Center for Research on Evaluation, Standards, and Student Testing, has been evaluating the Vermont Assessment Program since 1990. This interim report presents RAND's basic findings about the reliability of scores from the first statewide implementation of portfolio program, in the 1991-92 school year. An earlier report from the RAND evaluation, The Vermont Assessment Program: Interim Report on Implementation and Impact, 1991-92 School Year (Koretz, Stecher, and Deibert, 1992), discussed the implementation and perceived impact of the program. This report reflects a second component of the evaluation, in which RAND is examining the quality of the information yielded by the portfolio assessment. In this component, we focus not on the program's impact as an educational intervention, but rather its quality as an assessment tool.
This report is part of the RAND Corporation Draft series. The unrestricted draft was a product of the RAND Corporation from 1993 to 2003 that represented preliminary or prepublication versions of other more formal RAND products for distribution to appropriate external audiences. The draft could be considered similar to an academic discussion paper. Although unrestricted drafts had been approved for circulation, they were not usually formally edited or peer reviewed.
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