Several current international comparative large-scale assessments of educational achievement (ICLSA) make use of "Rasch models", to address functions essential for valid cross-cultural comparisons. From a historical perspective, ICLSA and Georg Rasch's "models for measurement" emerged at about the same time, half a century ago. However, the…

The thesis of this paper is that the decision to use one of three approaches to unit-of-analysis in educational research should be based on substantive considerations, not statistical factors. In addition to the commonly used "total analysis" (regression analysis across individuals), the within and between analyses are inherent in the…

Confusion in the terminology used in criterion-referenced measurement specifications and development and standard setting and the attendant role of cut-off scores are shown to need practical clarification through psychometric research on test applications and consequences. (CM)

Proposes that objective-referenced tests replace norm-referenced tests as a vehicle for program evaluation. Describes a methodology, based on latent trait theory, for joining norm-referenced and objective-referenced testing in a customized testing program. (TE)