Collapsing categories is a commonly used data reduction technique; however, to date there do not exist principled methods to determine whether collapsing categories is appropriate in practice. With ordinal responses under the partial credit model, when collapsing categories, the true model for the collapsed data is no longer a partial credit…

In education research, small samples are common because of financial limitations, logistical challenges, or exploratory studies. With small samples, statistical principles on which researchers rely do not hold, leading to trust issues with model estimates and possible replication issues when scaling up. Researchers are generally aware of such…

Despite the increasing popularity of latent class models (LCM) in educational research, methodological studies have not yet accumulated much information on the appropriate application of this modeling technique, especially with regard to requirement on sample size and number of indicators. This dissertation study represented an initial attempt to…

Federal standards established in 1997 allow respondents to select multiple-race categories. These new standards changed the single-race subgroup definitions that the government has required since 1977. Meta-analysis, research on long-term assessment trends, and other research involving historical comparisons must account for the definitional…

Two reduced rank classification procedures, principal components classification and equal weights classification, are described and compared by a simulation study to the standard classification procedure to determine their feasibilities as alternative classification procedures. A justification for the development of these two reduced rank…

Taxometric procedures provide an empirical means of determining which psychiatric disorders are typologically distinct from normal behavioral functioning. Although most disorders reflect extremes along continuously distributed behavioral traits, identifying those that are discrete has important implications for accurate diagnosis, effective…

This paper begins by describing an organizational model for the disciplinary study of rape--the University of Alabama's Rape Research Group. It outlines the structure, function, and some techniques of the study group, including the use of simulations and prototypical situations. In one study, verbal responses of rape victims were classified into…

In person-fit analysis, the object is to investigate whether an item score pattern is improbable given the item score patterns of the other persons in the group or given what is expected on the basis of a test model. In this study, several existing group-based statistics to detect such improbable score patterns were investigated, along with the…

IN THIS COLLECTION OF ERGONOMICS ABSTRACTS AND ANNOTATIONS THE FOLLOWING AREAS OF CONCERN ARE REPRESENTED--GENERAL REFERENCES, METHODS, FACILITIES, AND EQUIPMENT RELATING TO ERGONOMICS, SYSTEMS OF MAN AND MACHINES, VISUAL, AUDITORY, AND OTHER SENSORY INPUTS AND PROCESSES (INCLUDING SPEECH AND INTELLIGIBILITY), INPUT CHANNELS, BODY MEASUREMENTS,…

Debriefing is an important phase in using simulation games. Participants are invited to make a connection between experiences gained from playing the game and experiences in real-life situations. Thus, debriefing is the phase meant to encourage learning from the simulation game. Although design and practice of debriefing sessions should be aligned…

A bibliography that classifies and describes applications of management science methodology/philosophy to higher education administration is presented. Readily available materials and journal articles published mainly since 1972 are briefly described and coded using a taxonomy with five major dimensions: administrative level at which the…

A DESCRIPTION IS GIVEN OF CONCEPTS, METHODS, AND A STRATEGY TO AID TRAINING OFFICERS AND OTHERS RESPONSIBLE FOR PROGRAMS OF CHANGE IN CONDUCTING EVALUATION STUDIES INVOLVING SYSTEMATIC PLANNING, CONTROL, AND ASSESSMENT OF THE PROCESS OF CHANGE. BEGINNING WITH A MODEL OF PERCEPTION AND OF ITS APPLICATION TO LEARNING, THE AUTHOR DISCUSSES A TYPOLOGY…

The 7th International Conference on Education Data Mining held on July 4th-7th, 2014, at the Institute of Education, London, UK is the leading international forum for high-quality research that mines large data sets in order to answer educational research questions that shed light on the learning process. These data sets may come from the traces…