The authors examined the role of the sample-specific simulations (SSS; A. M. Ruscio & J. Ruscio, 2002; J. Ruscio & A. M. Ruscio, 2004) procedure in detecting low base-rate taxa that might otherwise prove elusive. The procedure preserved key distributional characteristics for moderate to high base-rate taxa, but it performed inadequately for low…

This study examines the research approaches that underlie research on educational technology. A classification framework was developed and used when examining all articles published in four well-known journals between 2000 and 2004 (n = 660). The aim of the study was to contribute toward an understanding of the research approaches that…

This study investigated the performance of native and non native speakers of Modern Greek language on morphology and syntax tasks. Non-native speakers of Greek whose native language was English, which is a language with strict word order and simple morphology, made more errors and answered more slowly than native speakers on morphology but not…

A series of experiments was performed to investigate the effectiveness and utility of automatically classifying documents through the use of multiple discriminant functions. Classification is accomplished by computing the distance from the mean vector of each category to the vector of observed frequencies of a document and assigning the document…

A reliability study is illustrated in which subjects are judged on a dichotomous trait by different sets of judges, possibly unequal in number. A kappa-like measure of reliability is proposed, its correspondence to an intraclass correlation coefficient is pointed out, and a test for its statistical significance is presented. (Author/CTM)

Presents an objective quantitative analysis of separate dialect features from the "Linguistic Atlas of the Middle and South Atlantic States." Findings suggest that a mathematical modeling of areal variation of dialect features, combined with a reassessment of traditional notions of dialect, could contribute to knowledge of language and…

A proportional reduction in loss (PRL) measure for reliability of categorical data is explored for the situation in which each of "N" judges assigns a subject to one of "K" categories. Calculating a lower bound for reliability under more general conditions than had been proposed is demonstrated. (SLD)

To investigate relationships between spatial terms and the human experience of space, participants in three separate experiments were asked to sort 35 English spatial terms into groups on the basis of which items seemed most similar to one another. Participants also were asked to provide a descriptive rationale for each of their groupings. Once…

In many practical settings, essentially the same differential item functioning (DIF) procedures have been in use since the late 1980s. Since then, examinee populations have become more heterogeneous, and tests have included more polytomously scored items. This paper summarizes and classifies new DIF methods and procedures that have appeared since…

Information Technology has brought significant benefits to organizations by allowing greater information sharing within and across firm boundaries leading to performance improvements. Emerging technologies such as Service Oriented Architecture (SOA) and Web2.0 have transformed the volume and process of information sharing. However, a comprehensive…

This study evaluates a large urban district's standards-based promotion policy decisions against a model-driven classification. Hierarchical logistic regression was used to explore factors related to grade retention at both the student and school level. Statistical results indicate that using students' next year achievement test scores as…