In this article, a Bayesian model selection approach is introduced that can select the best of a set of inequality and equality constrained hypotheses for contingency tables. The hypotheses are presented in terms of cell probabilities allowing researchers to test (in)equality constrained hypotheses in a format that is directly related to the data.…

Comparison of three microcomputer statistical packages, SPSS, SAS, and BMDP, focuses on ease of use, ease of learning, documentation, accuracy, similarity to the mainframe version, and speed. The results of eight statistical multivariate analyses used to evaluate their performance are given. (LRW)

Discusses two alternative metrics to detect computer software plagiarism: the Halstead metric drawn from the software science discipline and an ad hoc method drawn from program grading experience and identified by factor analysis. Possible explanations as to why the ad hoc method is more useful in identical-task environments are considered.…

Discusses the use and interpretation of multiple regression analysis with computer programs and presents a flow chart of the process. A general explanation of the flow chart is provided, followed by an example showing the development of a linear equation which could be used in estimating manufacturing overhead cost. (Author/LRW)

Discusses current use of psychological theory in software science and reviews recent developments in cognitive psychology relevant to programing (human information processing, expert-novice differences). Critique of Maurice Halstead's model of cognitive aspects of programing and a structured data flow perspective (control flow and data flow…

A survey of computer scientists was conducted to identify factors that affect software complexity. A total of 160 items were selected from the literature to include in a questionnaire sent to 425 individuals who were employees of computer-related businesses in Lawrence and Kansas City. The items were grouped into nine categories called system…

This paper discusses the incorporation of heuristics in computerized decision aids that are used for structuring decision problems. Decision theory is described in terms of linked subsystems, and sites where it is necessary to employ heuristic rather than normative, algorithmic procedures are identified. Production systems are then used to…

Identifies technical and linguistic problems associated with use of Arabic in input and output devices and describes efforts to introduce a unified code for the Arabic language (CODAR-U/FD). The Hydriyya Method, requirements for Arabic terminals suitable for library use, manufacturers of bilingual terminals, and Arabization of software are…

Describes performance criteria for users of computer assisted instruction (CAI) that are used to provide users with feedback about their performance relative to other users. This study evaluated 146 novice users on their percentages of correct responses, time required for completion, and number of times the CAI tutorial was performed. (LRW)

Presents a classification system of four microcomputer simulation types developed to evaluate their instructional processes: structured questions and graphics, variable-assignment exercises, diagnostic simulations, and group-interactive simulations. How this taxonomy contributes to three tasks associated with classroom use of software is…

Discusses the results of an ongoing research study to measure college students' microcomputer literacy before taking a microcomputer course. A brief review of the literature on computer literacy is provided, a comparative analysis of results is given, and a microcomputer literacy index is described that measures literacy and ranks students.…

Surveys current state-of-the-art in courseware development for microcomputers; discusses guidelines for overall program and screen display design; describes three major approaches to developing courseware--programing language, authoring system, or authoring language use; and reviews two current research areas--automated instructional development…

This report describes a study designed to determine whether the collection of computer software by libraries falls into a pattern of library type and whether patron use of computer software falls into a pattern of clientele type. Following a summary of previous research, a discussion of the study methodology describes a survey of 154 randomly…

Examines processes by which general but weak search methods are transformed into powerful, domain-specific search strategies by classifying types of heuristics learning that can occur and components that contribute to such learning. A learning system--SAGE.2--and its structure, behavior in different domains, and future directions are explored. (36…

Effectiveness of two versions of computer software used as an electronic blackboard to present geometric concepts to ninth grade students was compared. The experimental version incorporated color, animation, and nonverbal sounds as stimuli; the no-stimulus version was monochrome. Both immediate and delayed learning were significantly better for…