In recent years, substantial improvements were obtained in the effectiveness of data driven algorithms to validate the mapping of items to skills, or the Q-matrix. In the current study we use ensemble algorithms on top of existing Q-matrix refinement algorithms to improve their performance. We combine the boosting technique with a decision tree.…

In light of the emergence of statistical analysis techniques based on data mining in education sciences, and the potential they offer to detect non-trivial information in large databases, this paper presents a procedure used to detect factors linked to academic achievement in large-scale assessments. The study is based on a non-experimental,…

There is a lack of research on the effects of outliers on the decisions about the number of factors to retain in an exploratory factor analysis, especially for outliers arising from unintended and unknowingly included subpopulations. The purpose of the present research was to investigate how outliers from an unintended and unknowingly included…

Describes and discusses an instructional systems media selection model based on training effectiveness and cost effectiveness prediction techniques that were developed to support the U.S. Navy's training programs. Highlights include instructional delivery systems (IDS); decision making; trainee characteristics; training requirements analysis; an…

The selection matrix is an attempt to provide an efficient, effective, and practical basis for selecting the instructional medium possessing more specific learner-situation-task attributes than others. The selection matrix provides three important capabilities by (1) identifying a number of appropriate media and isolating them, (2) reducing the…

Results of data analysis on 470 journal titles illustrate complexity of the fuzzy set theory modeling process, which consists of three factors--number of missing issues, citations, circulations--and its limitations in making journal binding decisions. Procedures of research, data collection, and data analysis are discussed. Matrices are included.…

Matrix management provides a flexible method of responding to today's complex challenges in a way that supports a traditional organization and at the same time recognizes the necessity to draw upon the total resource needs of the institution through project teams. Operation at Kings College is described. (MLW)

Describes experiments relating information to decision making. The experiments were developed to validate previously suggested conceptual model of information flow and its relation to decision making and to establish specific values for significant parameters involved. Background and summary of recent research and experimental design and research…

The Cost-Effectiveness Analysis Model for Competency Based Education (CBE) Assessment Programs is designed to assist state and institutional decision-makers in the cost analysis of alternative assessment strategies in CBE programs. The general model indicates stages of decision-making related to the use of various assessment strategies within the…

Provides a methodology for selection of an expert support system (ESS) in an emergency management training environment. A decision matrix construct for selection of an ESS for casualty disposition training at Emergency Preparedness Canada is presented, and four system options of simulation models that deal with emergency management are described.…