General chemistry tests from the Examinations Institute of the Division of Chemical Education of the American Chemical Society have been analyzed to identify factors that may influence how individual test items perform. In this paper, issues of item order (position within a set of items that comprise a test) and answer order (position of correct…

When an examination consists in whole or part of constructed response test items, it is common practice to allow the examinee to choose a subset of the constructed response questions from a larger pool. It is sometimes argued that, if choice were not allowed, the limitations on domain coverage forced by the small number of items might unfairly…

This paper describes a computer program in Microsoft BASIC which selects and administers test items from a small item bank. The level of the difficulty of the item selected depends on the test taker's previous response. This adaptive system is based on the Rasch model. The Rasch model uses a unit of measurement based on the logarithm of the…

The merits and hazards of minimum competency testing for the individual student or for student groups are discussed. Types of groups which lend themselves to group application and some important factors in determining the parameters of a group are discussed. Ten critical issues related to minimum competency testing are identified: (1) scope of…

This study investigated the "customization" of a standardized achievement test to measure the effect on group and individual scores. "Customization" refers to the modification of an existing test to more closely match test specifications of the entity using the test, usually a state or large school district. Results of an…