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)

This study analyzes the effects that state licensing requirements have had on barber supply and on new entrants into the trade over the period 1969-1973. The authors found that the minimum education requirements, barber school hours required, and months of apprenticeship required have had little or no significant effect. (MF)

The effect of performance evaluations on expectations for future performances is studied using an extension of a Bayesian model. Whereas the model was originally limited to the cases where person C is both an actor and an observer, in the present extension these become particular cases of the model. (Author/RD)

Sets of randomly generated numbers are used to produce simulated data sets to illustrate that high heritability of a property within each of two populations may be consistent with a vanishingly small heritability in the combined population. (A response by Jensen appears in the next issue of Journal of Educational Statistics, p.385). (CTM)

Identifies difficulties of using microcomputer-based systems as surrogate teachers and some benefits from their appropriate use in partnership with the teacher. Uses considered include application program, simulation program, drill and practice, tutorial program, computer modeling, and administration program. (JEG)

Examines through a series of mathematical models (theorems, descriptions, and examples), properties and operations on inverted files, which are used in an information retrieval system based on thesaurus with weighted descriptors. (CWM)