Gives a set of minimally sufficient axioms to define and distinguish common factor theory, image theory, and component theory and analyzes claims that have been made for image theory as a device for improving factor theory. (Author/RC)

A comparison of three multivariate models (canonical reliability model, maximum generalizability model, canonical correlation model) for estimating test battery reliability indicated that the maximum generalizability model showed the least degree of bias, smallest errors in estimation, and the greatest relative efficiency across all experimental…

Discusses four models of needs analysis: Kaufman's "Needs Assessment," Coffing's "Client Need Assessment," Lee's "Needs-Assessment," and Harless'"Front-End Analysis." A matrix comparing these models is included. (RAO)

Epistemological and methodological differences which underlie empiricist v rationalist science are described. (Author/MP)

Analyzed the relations between two continuous response models intended for typical response items: the linear congeneric model and Samejima's continuous response model (CRM). Illustrated the relations described using an empirical example and assessed the relations through a simulation study. (SLD)

Offers an elementary two-legal-jurisdiction analysis using conventional economic assumptions, exploring how and why a distinctive body of legal doctrine comes into being. Asserts that elementary economic theory offers the simplified answer that the legal doctrine will take the shape it does because it is efficient for the group that adopts it. (EV)

Compares two information retrieval systems, CLARIT and TOPIC, in terms of assigned versus derived and precoordinate versus postcoordinate indexing. Models of information retrieval systems are discussed, and a test of the systems using a demonstration database of full-text articles from the "Wall Street Journal" is described. (Contains 21…

Discusses the utility of multilevel confirmatory factor analysis and hierarchical linear modeling methods in testing measurement models in which the underlying attribute may vary as a function of levels of observation. A real dataset is used to illustrate the two approaches and their comparability. (SLD)

Discussion of multimedia systems focuses on interaction approaches for the quality of service (QoS) architectures developed for the Internet and for asynchronous transfer mode (ATM). Highlights include interactions, videoconferencing, video on demand, a comparison of the ATM and IntServ QoS architectures, interaction models, and subordination…

Explores the relationship between the higher-order factor model and the hierarchical factor model and shows that the Schmid-Leiman transformation process (J. Schmid and J. Leiman, 1957) produces constrained hierarchical factor solutions. Shows that the two models are not mathematically equivalent unless appropriate direct effects are added. (SLD)

This study examined factors contributing to the achievements of Israeli Bedouin and Jewish students in an Israeli college for teacher education. The study employed Tinto's model and its core concepts of academic and social integration as main explanatory factors for student achievement in an academic institute. Background characteristics were also…

This study was conducted to explore the effects of a two-way immersion bilingual program on maintenance/acquisition of Spanish-language proficiency and on reading and mathematics achievement in English over a period of 4 academic years. The researchers used Hierarchical Linear Modeling (HLM) techniques to compare the effects of two different…

This study examined undergraduate and graduate engineering students' epistemological beliefs as a function of their educational level. Schommer's (1998) Epistemological Questionnaire was used to assess the beliefs in quick learning, certain knowledge, fixed ability, and simple knowledge of 396 students attending two universities in Western…

This paper presents a novel instructional model for e-learning and an evaluation study to determine the effectiveness of this model for teaching Java language programming to information technology specialists working for the Spanish Public Administration. This is a general-purpose model that combines objectivist and constructivist learning…