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Direct linkHuynh, Huynh; Rawls, Anita – Journal of Applied Measurement, 2011
There are at least two procedures to assess item difficulty stability in the Rasch model: robust z procedure and "0.3 Logit Difference" procedure. The robust z procedure is a variation of the z statistic that reduces dependency on outliers. The "0.3 Logit Difference" procedure is based on experiences in Rasch linking for tests…
Descriptors: Comparative Analysis, Item Response Theory, Test Items, Difficulty Level
Kim, Do-Hong; Huynh, Huynh – Educational and Psychological Measurement, 2008
The current study compared student performance between paper-and-pencil testing (PPT) and computer-based testing (CBT) on a large-scale statewide end-of-course English examination. Analyses were conducted at both the item and test levels. The overall results suggest that scores obtained from PPT and CBT were comparable. However, at the content…
Descriptors: Reading Comprehension, Computer Assisted Testing, Factor Analysis, Comparative Testing
Huynh, Huynh; Barton, Karen E. – Applied Measurement in Education, 2006
This study examined the effect of oral administration accommodations on test structure and student performance on the Reading test of the South Carolina High School Exit Examination (HSEE). The examination was given at Grade 10 and was untimed; hence, students were permitted as much time as they needed to answer all the questions. Three groups of…
Descriptors: Reading Tests, Exit Examinations, Learning Disabilities, Academic Achievement
Huynh, Huynh; Meyer, J. Patrick; Gallant, Dorinda J. – Applied Measurement in Education, 2004
This study examined the effect of oral administration accommodations on test structure and student performance on the mathematics portion of the South Carolina High School Exit Examination (HSEE). The examination was given at Grade 10 and was untimed. Three groups of students were studied. Two groups took the regular form. One group had recorded…
Descriptors: Grade 8, Grade 10, Mathematics Tests, Disabilities
