The wide availability of large amounts of inexpensive computing power has encouraged statisticians to explore many approaches to a basis for inference. This paper presents one such "computer-intensive" approach: the bootstrap of Bradley Efron. This methodology fits between the cases where it is assumed that the form of the distribution…

Findings of a study on the relation between 6-year-olds' attachment security and their mental representations of attachment relationships are reported. It was expected that infants whose attachment behavior seemed disorganized would be fearful of their attachment figures and experience themselves as helpless, and that these conditions would be…

This paper discusses several interrelated processes aimed at helping teachers to use an experimental approach to improve their teaching. In making a diagnosis, the teacher generates a hypothesis about the relationship between his/her potential behavior and its effect upon the students. Following the formulation of such a hypothesis, the teacher…

Conjunctive item response models are introduced such that (a) sufficient statistics for latent traits are not necessarily additive in item scores; (b) items are not necessarily locally independent; and (c) existing compensatory (additive) item response models including the binomial, Rasch, logistic, and general locally independent model are…

This study was conducted to determine if viewing a commercially prepared videotape containing written and aural subliminal messages was more effective at producing weight loss than a videotape containing the same content, but without the subliminals. Participants included undergraduate and graduate students from Iowa State University (N=51) who…

A collective assessment of the comparative study of foreign policy as a field of scholarly inquiry is presented. An effort is made to interpret the field's boundaries, to review its accomplishments, and to propose some future directions. The first section, in which the field's scope and boundaries are discussed, asserts that the boundaries are…

A common problem in the behavioral sciences is to determine if a set of observed variables can be more parsimoniously represented by a smaller set of derived variables. To address this problem, the performance of five methods for determining the number of components to retain (Horn's parallel analysis, Velicer's Minimum Average Partial (MAP),…

Building communication theory in terms of three-variable relationships is a promising route to developing better theory, because three-variable relationships stand midway between sometimes overly simplistic two-variable relationships, and the more complex path analysis. The analysis of three-variable relationships has been done in many previous…

This study evaluated the effectiveness of an expert instructional system used to provide timely and quality feedback about the quality of a variety of visual materials production techniques to undergraduate students in a basic instructional materials production class. One group of students generated its own feedback by using the expert system, and…

A content analysis was performed on all of the BBC (British Broadcasting Corporation) Nine O'Clock News and ITV (Independent Television) News at Ten programs that were broadcast during Britain's year-long miners' strike--March 1984-March 1985--and a four-month sample of Channel 4 news to examine how television news covered a protracted story of…

This study tests the widely cited proposition that 20% of a library's books account for 80% of its circulation. Using data collected for a collection development survey, it was found that of the sample of 4,213 books, 799, or 19%, accounted for 79% of the circulation during 1987. In fact, 25% of the books accounted for all of the circulation that…

This study attempted to determine if there was a change in job attitude among employees of a state institution for the developmentally disabled after a move to new, superior facilities. An attitude scale was constructed and administered in December 1982, prior to the move. A second testing occurred two months later, after Experimental Group I had…

This examination of the reactions of women who are binge eaters to television advertising tested three hypotheses: (1) women who binge experience more negative emotional reactions to television ads, especially ads emphasizing food or weight control; (2) highly feminine women, or women with large real-ideal sex role gaps, react negatively; and (3)…

This paper describes a research and development project in teaching designed to examine whether and how it might be possible to bring the meaning of knowing mathematics in school closer to what it means to know mathematics within the descipline by deliberately altering the roles and responsibilities of teacher and students in classroom discourse.…