Mixed-format tests that include both multiple-choice (MC) and constructed-response (CR) items have become widely used in many large-scale assessments. When an item response theory (IRT) model is used to score a mixed-format test, the unidimensionality assumption may be violated if the CR items measure a different construct from that measured by MC…

Mixed-format tests containing both multiple-choice (MC) items and constructed-response (CR) items are now widely used in many testing programs. Mixed-format tests often are considered to be superior to tests containing only MC items although the use of multiple item formats leads to measurement challenges in the context of equating conducted under…

Under item response theory (IRT), linking proficiency scales from separate calibrations of multiple forms of a test to achieve a common scale is required in many applications. Four IRT linking methods including the mean/mean, mean/sigma, Haebara, and Stocking-Lord methods have been presented for use with single-format tests. This study extends the…

The process proposed for the development and use of computer-based testing, including simulation and multiple-choice questions, as part of the National Board of Medical Examiners' certification sequence is outlined. Summary reports of first-phase pilot testing in six medical schools are appended. (MSE)

Performance assessment is reviewed as an emerging form of alternative assessment, focusing on how it has been defined in the research literature, the criteria for evaluating its authenticity, the measurement of process and product, and the link between assessment and instruction. Three important dimensions that must be considered in describing…

Many state and local entities are developing and using performance assessment programs. Because these initiatives are so diverse, it is very difficult to understand what they are doing, or to compare them in any meaningful way. Multiple-choice tests are contrasted with performance assessments, and preliminary classifications are suggested to…