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Yen, Wendy M.; Lall, Venessa F.; Monfils, Lora – ETS Research Report Series, 2012
Alternatives to vertical scales are compared for measuring longitudinal academic growth and for producing school-level growth measures. The alternatives examined were empirical cross-grade regression, ordinary least squares and logistic regression, and multilevel models. The student data used for the comparisons were Arabic Grades 4 to 10 in…
Descriptors: Foreign Countries, Scaling, Item Response Theory, Test Interpretation
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Rock, JoAnn Leah – ETS Research Report Series, 2007
In this study, a hierarchical linear model (HLM) was used within a cluster random assignment design to test the impact of "Criterion"? on students' writing skill when "Criterion" was used as a supplementary instructional tool in ninth grade English classrooms over a 4 week period. The study was conducted in three states:…
Descriptors: Hierarchical Linear Modeling, Teaching Methods, Grade 9, English Instruction
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Johnson, Matthew S.; Jenkins, Frank – ETS Research Report Series, 2005
Large-scale educational assessments such as the National Assessment of Educational Progress (NAEP) sample examinees to whom an exam will be administered. In most situations the sampling design is not a simple random sample and must be accounted for in the estimating model. After reviewing the current operational estimation procedure for NAEP, this…
Descriptors: Bayesian Statistics, Hierarchical Linear Modeling, National Competency Tests, Sampling