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Download full textvon Davier, Alina A., Ed.; Liu, Mei, Ed. – ETS Research Report Series, 2006
This report builds on and extends existent research on population invariance to new tests and issues. The authors lay the foundation for a deeper understanding of the use of population invariance measures in a wide variety of practical contexts. The invariance of linear, equipercentile and IRT equating methods are examined using data from five…
Descriptors: Equated Scores, Statistical Analysis, Data Collection, Test Format
Wang, Xiang Bo – 1999
The Law School Admission Council (LSAC) is currently investigating the feasibility and advisability of administering a computerized Law School Admission Test (LSAT). In this context, using data from the College Boards 1989 National Advanced Placement (AP) Chemistry Examination for 18,462 test takers and a survey of all AP Chemistry teachers in…
Descriptors: Adaptive Testing, Advanced Placement, Chemistry, College Entrance Examinations
Camara, Wayne J.; Schmidt, Amy Elizabeth – College Entrance Examination Board, 1999
Group differences among ethnic and racial groups on a series of educational measures and outcomes are examined. African-American and Hispanic students perform substantially lower than white and Asian students on the SAT I. These substantial differences also exist on a variety of other admissions tests used for undergraduate, graduate, and…
Descriptors: Standardized Tests, Social Stratification, Differences, Scores
