This paper illustrates that the psychometric properties of scores and scales that are used with mixed-format educational tests can impact the use and interpretation of the scores that are reported to examinees. Psychometric properties that include reliability and conditional standard errors of measurement are considered in this paper. The focus is…

"Scaling" is the process of constructing a score scale that associates numbers or other ordered indicators with the performance of examinees. Scaling typically is conducted to aid users in interpreting test results. This module describes different types of raw scores and scale scores, illustrates how to incorporate various sources of information…

Psychometric properties of item response theory proficiency estimates are considered in this paper. Proficiency estimators based on summed scores and pattern scores include non-Bayes maximum likelihood and test characteristic curve estimators and Bayesian estimators. The psychometric properties investigated include reliability, conditional…

Discusses some practical issues in linking educational assessments, focusing on the importance of clarity of purpose when assessments are linked. Also stresses the importance of the design used to collect data for linking. Uses linking studies from a variety of situations to illustrate these points. (SLD)

Results of a survey completed by 60 representatives of institutions and a questionnaire answered by 55 employers suggest that there will continue to be a shortfall in the number of measurement professionals graduating from educational programs in measurement relative to the number of available employment opportunities, and that this is especially…

An instructional module is presented to promote a conceptual understanding of test form equating using traditional methods. Equating is distinguished from scaling. The equating methods described are: (1) mean; (2) linear; and (3) equipercentile. The module includes a self-test. (SLD)