A newly developed input/output method for comparing the efficiency of urban elementary schools is presented. The method results in the identification of efficient and inefficient schools and provides management information relative to input and output measures. (Author/IRT)

Tesselations and n-dimensional geometry problems are reviewed. The author discusses possible models which could be used to approach and understand these special aspects of geometry. (MP)

Using reasonable values for the parameters in both null and alternative hypotheses about covariance matrices, an optimal and feasible combination of number of subjects, significance level, and power of the test were determined for an empirical study of the measurement of musical ability. (Author/BW)

An analysis is presented of pupil responses to several items on the second National Assessment of Educational Progress (NAEP) mathematics survey which focused on the concepts and models of the fundamental operations. (MP) Aspect of National Assessment (NAEP) dealt with in this document: Results (Interpretation).

The use of mathematical modelling as a systematic framework for solving word problems is presented. Applications for typical elementary algebra and calculus problems are featured. (MP)

This paper elaborates on the work of Cardinet, and others, by clarifying some points regarding calculations, specifically with reference to existing computer programs, and by presenting illustrative examples of the calculation and interpretation of several generalizability coefficients from a complex six-facet (factor) design. (Author/RL)

Discusses what librarians have written about futures research and examines the application of various methods of such research in librarianship. An extensive bibliography is included. (CHC)

Presents a reexamination of an intuitively geometric view of the nonrelativistic Pauli spinor in a simplified discussion of the connection between the rotation group and special transformations in the plane of projection. This view of the spinor is related to those based on the existence of an istropic or null vector. (SK)

Discusses the Weinberg-Salam theory of the weak and electromagnetic interactions which is an attempt at a partially unified theory for physics. (HM)

Atkinson and Birch's dynamic theory of action is discussed with regard to achievement motivation theory. Implications are derived that are in contrast to expectations derived from traditional episodic theories. Implications of dynamic theory for the theory of fear of failure are discussed. Recent results support the dynamic theory. (Author/RD)

An approach to human performance based on economic concepts is described; the human system employs utility considerations to determine allocation of its limited resources. The efficiency of those resources in performance depends on parameters characterizing the task and the performer. Models and interpretations of dual task performance are…

The cascade model of information processing is compatible with the relation between time and accuracy in speed-accuracy trade-off experiments. Findings regarding the additive factors methods led to reexamination of conclusions drawn from several studies about the locus of perceptual and attentional effects on processing. (Author/RD)

Ways are presented to help students develop precomputational fraction concepts and skills using a circular-region or "pie" model. (MK)

Two major and two minor principles are shown to serve to generate a large number of multivariate models, including canonical analysis, factor analysis, and latent trait test theory. The statistical underpinnings of the theory are discussed. (Author/JKS)

The use of a path analysis model to obtain unique, substantively meaningful decomposition of variance among endogenous (independent) variables in the model is argued. This reasoning runs counter to more traditional path analytic work. An example is provided. (Author/JKS)