The purpose of this paper is to highlight some psychometric cautions that should be observed when seeking to develop short form versions of tests. Several points are made: (1) score reliability is impacted directly by the characteristics of the sample and testing conditions; (2) sampling error has a direct influence on reliability and factor…

This article invokes a literal image of test givers as measurement devices and explores the psychometric properties of these test administrator instruments. Concurrent and content validation and test-retest and parallel-forms validity are explored. (SLD)

Discusses authenticity in language testing in relation to the language proficiency movement. Looks at both sociolinguistic and psychometric principles as they are concerned with authenticity and validity as well as the inferential distance that separates face validity from techical validities. Criticizes the belief that some test type possess…

The authors of this volume's stimulus papers have taken on the challenge of developing measures of teachers' mathematical knowledge for teaching (MKT). This task involves multiple decisions and considerations, including: (1) How does one specify the body of knowledge being assessed? What warrants are offered for those choices?; (2) How does one…