Results of a minimum competency test administered to ninth-grade students were evaluated to compare the performance of 723 students (345 males, 347 females, and 31 unidentified students) on content-specific and process skill questions. Subjects represented a random sample of students taking the Regents Competency Test in Science--a 70-item…

This study investigated the relationships among the symbolic representation of problems given to students to solve, the mental representations they use to solve the problems, and the accuracy of their solutions. Twenty eleventh-grade science students were asked to think aloud as they solved problems on the ideal gas laws. The problems were…

How two students with the same number-correct score, calculated by dramatically different patterns of responses, can achieve the same ability estimate is demonstrated. The present study investigated the incidence of person misfit to the model in a nationally standardized test of achievement devised using the Rasch item response theory model. It…

Data from science and mathematics tests administered to 12th graders in Massachusetts were analyzed to compare the use of multiple-choice items with that of open-ended questions. Specifically, the study was designed to determine the statistical equivalence of the two types of test items, the information yielded by the items, and the grounds upon…

The equating of reasonably parallel forms of College Board Achievement Tests in biology, chemistry, mathematics level II, American history and social studies, and French is discussed. Results of the following five equating methods are compared: (1) Tucker; (2) Levine equally reliable; (3) Levine unequally reliable; (4) frequency estimation…

A substantially revised Medical College Admission Test (MCAT) was introduced in spring 1991. The new examination is designed to assess critical thinking skills, basic concepts and problem solving facility in science, and writing skills. This paper reports preliminary findings on the factor structure of the revised MCAT, which consists of four…

Arkansas law requires that each student aged 7 through 16 years in a home school program be tested annually using a nationally recognized standardized test chosen by the students' parents from a list of tests approved by the state. Achievement for home schooled and public schooled students in Arkansas was compared for grades 4, 7, and 10 using 6…