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Huang, Jia – ProQuest LLC, 2010
\The purpose of this study was to investigate population invariance of the true-score linking functions with respect to the ability subgroups (i.e., average-achieving students, low-achieving students, and students with learning disabilities). The mean/mean linking functions for five alternate forms of a curriculum-based math problem solving…
Descriptors: Curriculum Based Assessment, Learning Disabilities, Problem Solving, Item Response Theory