The focus of this paper is on the design, administration, and scoring of a dynamically administered elicited imitation test of L2 English morphology. Drawing on Vygotskian sociocultural psychology, particularly the concepts of zone of proximal development and dynamic assessment, we argue that support provided during the elicited imitation test…

This paper provides a summary of a novel and integrated way to think about the item response models (most often used in measurement applications in social science areas such as psychology, education, and especially testing of various kinds) from the viewpoint of the statistical theory of generalized linear and nonlinear mixed models. In addition,…

Based on the observation that scale-level methods are sometimes exclusively used to investigate measurement invariance for test translation, describes results of a simulation study investigating whether item-level differential item functioning (DIF) manifests itself in scale-level analyses such as single and multigroup factor analyses and per…

Argues that classical test theory cannot be used at the item level on "authentic" language tests. However, if the total score is derived by adding the scores of a number of different and independent parts, test reliability can be estimated. Suggests using the Classical Latent Additives model to examine test-part homogeneity. (Author/SED)

Investigates differential item functioning (DIF) across two different broad language groupings, Asian and European, in a speaking test in which the test takers' responses were rated polytomously. Data were collected from 1038 nonnative speakers of English from France, Hong Kong, Japan, Spain, Switzerland, and Thailand who took the SPEAK test in…

Reports on the potential problems in scoring responses to sequencing tests, the development of a computer program to overcome these difficulties, and an exploration of the value of scoring procedures. (Author/VWL)

Analyzes gender-uniform differential item functioning (DIF) in a second language vocabulary test with the tools of item response theory to study potential gender impact on the test performance measured by different item composites. Results show that while there are test items with indications of DIF in favor of either females or males, the test as…

Compares two language tests with different item types. The tests are the Dutch Reynell test and the BELL test. Both tests were administered to 64 Dutch kindergarten children with an average age of 70.3 months. Regression analyses indicate that item type does not contribute significantly to prediction of item difficulty, but the linguistic…

Presents a study conducted to provide a comparative analysis of five item analysis indices using both IRT and non-IRT indices to describe the characteristics of flagged items and to investigate the appropriateness of logistic regression as an item analysis technique for further studies. The performance of five item analysis indices was examined.…