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Camilli, Gregory – Journal of Educational Measurement, 1999
Yen and Burket suggested that shrinkage in vertical equating cannot be understood apart from multidimensionality. Reviews research on reliability, multidimensionality, and scale shrinkage, and explores issues of practical importance to educators. (SLD)
Descriptors: Equated Scores, Error of Measurement, Item Response Theory, Reliability

Hambleton, Ronald K. – Applied Psychological Measurement, 2000
Introduces the articles of this theme issue focusing on performance assessment methodology. Papers address: (1) merging item formats; (2) scoring models; (3) equating and linking; (4) generalizability theory; (5) standard setting methods; and (6) validity issues and methods. (SLD)
Descriptors: Equated Scores, Evaluation Methods, Generalizability Theory, Performance Based Assessment