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A Comparison of Methods of Vertical Equating.
Loyd, Brenda H.; Hoover, H. D. – 1979
Rasch model vertical equating procedures were applied to three mathematics computation tests for grades six, seven, and eight. Each level of the test was composed of 45 items in three sets of 15 items, arranged in such a way that tests for adjacent grades had two sets (30 items) in common, and the sixth and eighth grades had 15 items in common. In…
Descriptors: Achievement Tests, Comparative Analysis, Elementary Education, Equated Scores
The Comparability of Equal Raw Scores for Children at Different Grade Levels: An Issue in "Out-of-Level" Testing.
Plake, Barbara S.; Hoover, H. D. – 1977
To determine if equal raw scores have the same "meaning" for students tested "in" and "out-of-level," four "out-of-level" grade groups who took the Vocabulary, Reading, and Mathematics Concepts subtests of the Iowa Tests of Basic Skills typically administered to fifth graders were compared to "in…
Descriptors: Achievement Tests, Analysis of Variance, Elementary Education, Grade 4
The Comparability of Equal Raw Scores Obtained from In-Level and Out-Of-Level Testing: One Source of the Discrepancy between In-Level and Out-of-Level Grade Equivalent Scores.
Peer reviewed Peer reviewed
Plake, Barbara S.; Hoover, H. D. – Journal of Educational Measurement, 1979
An experiment investigated the extent to which the results of out-of-level testing may be biased because the child given an out of level test may have had a significantly different curriculum than the children given in-level tests. Item analysis data suggested this was unlikely. (CTM)
Descriptors: Achievement Tests, Elementary Education, Elementary School Curriculum, Grade Equivalent Scores