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Download full textWoodruff, David; Traynor, Anne; Cui, Zhongmin; Fang, Yu – ACT, Inc., 2013
Professional standards for educational testing recommend that both the overall standard error of measurement and the conditional standard error of measurement (CSEM) be computed on the score scale used to report scores to examinees. Several methods have been developed to compute scale score CSEMs. This paper compares three methods, based on…
Descriptors: Comparative Analysis, Error of Measurement, Scores, Scaling
Peer reviewedYen, Wendy M. – Journal of Educational Measurement, 1986
Two methods of constucting equal-interval scales for educational achievement are discussed: Thurstone's absolute scaling method and Item Response Theory. Alternative criteria for choosing a scale are contrasted. It is argued that clearer criteria are needed for judging the appropriateness and usefulness of alternative scaling procedures.…
Descriptors: Achievement Tests, Latent Trait Theory, Mathematical Models, Scaling
Price, Gary G.; And Others – 1979
The procedures used in Phase I of the Individually Guided Education (IGE) evaluation to scale, adjust, and aggregate reading and mathematics achievement in grade 5 are described. An explanation is included of the administration procedures. The tests used (The Short Form Test of Academic Aptitude and the Comprehensive Tests of Basic Skills) and the…
Descriptors: Academic Ability, Achievement Gains, Achievement Tests, Educational Testing
Price, Gary G.; And Others – 1979
The procedures used in Phase I of the Individually Guided Education (IGE) evaluation to scale, adjust, and aggregate reading and mathematics achievement in grade 2 are described. An explanation is included of the administration procedures. The tests used (the Comprehensive Tests of Basic Skills and the Short Form Test of Academic Aptitude) and the…
Descriptors: Academic Ability, Achievement Gains, Achievement Tests, Educational Testing
Prestwood, J. Stephen; And Others – 1985
Six new forms of Armed Services Vocational Aptitude Battery (ASVAB) were developed. These new forms were equated to a standard reference test, ASVAB 8a, using normative data based on a 1980 weighted probability sample of American youth, ages 18-23. Equating allows the services to report the distributions of examinee ability on a common metric or…
Descriptors: Ability Identification, Aptitude Tests, Armed Forces, Data Collection
Hambleton, Ronald K.; Rogers, H. Jane – 1986
This report was designed to respond to two major methodological shortcomings in the item bias literature: (1) misfitting test models; and (2) the use of significance tests. Specifically, the goals of the research were to describe a newly developed method known as the "plot method" for identifying potentially biased test items and to…
Descriptors: Criterion Referenced Tests, Culture Fair Tests, Difficulty Level, Estimation (Mathematics)
