Studies carried out over a 12-year period addressed fundamental questions on the use of Rasch-based item banks. Large field tests administered in grades 3-8 of reading, mathematics, and science items, as well as standardized test results were used to explore the possible effects of many factors on item calibrations. In general, the results…

This paper details the development of the high school general mathematics examination and reading comprehension tests for grades one through eight for the curriculum referenced testing program in Charleston County School District, South Carolina. While the basic developmental approach was similar, problems encountered in developing the two types…

The Charleston County School District (CCSD) has recently begun development of criterion-referenced tests (CRT) in different subject areas and for different grade levels. This paper outlines the process that CCSD followed in the development of math and language arts tests for grades one through eight and area exams for required high school…

Greater knowledge about the practical application of Rasch technology can help in avoiding misapplications and confusions in testing programs. Equal interval curriculum-based scaling makes possible the following improvements in measuring basic skills achievement by enabling testing programs to: (1) individualize the difficulty level of…