Popular item response theory (IRT) models are considered complex, mainly due to the inclusion of a random factor variable (latent variable). The random factor variable represents the incidental parameter problem since the number of parameters increases when including data of new persons. Therefore, IRT models require a specific estimation method…

There is growing pressure to make efficacy experiments more useful. This requires attending to the twin goals of generalizing experimental results to those schools that will use the results and testing the intervention's theory of action. We show how electronic records, created naturally during the daily operation of technology-based…

In this article, we present a perspective on the role of the hippocampal system in generalization, instantiated in a computational model called REMERGE (recurrency and episodic memory results in generalization). We expose a fundamental, but neglected, tension between prevailing computational theories that emphasize the function of the hippocampus…

Although community-based instruction (CBI) is an essential component of an effective educational program for students with severe disabilities, teachers frequently struggle to implement such instruction on a frequent and consistent enough basis for students to learn functional skills quickly and efficiently. This article describes evidence-based…

This paper proposes a multidimensional generalization of Coombs' (1964) parallelogram model for "pick any/'n'" data, which result from each of a number of subjects having selected a number of objects (s)he likes most from a prespecified set of "n" objects. In the model, persons and objects are represented in a low dimensional space defined by a…

Social LIFE (Social Learning of Independence through Functional Experiences), a game used as a means of developing new social skills in a variety of settings and social situations and involving players and a mediator (instructor), is described. Appropriate responses to the game situations are rewarded by points or play money. Target behaviors or…