In this paper, we used simulations to compare the performance of classical and Bayesian estimations in logistic regression models using small samples. In the performed simulations, conditions were varied, including the type of relationship between independent and dependent variable values (i.e., unrelated and related values), the type of variable…

Measurement bias is defined as a violation of measurement invariance, which can be investigated through multigroup factor analysis (MGFA), by testing across-group differences in intercepts (uniform bias) and factor loadings (nonuniform bias). Restricted factor analysis (RFA) can also be used to detect measurement bias. To also enable nonuniform…

Computational models are powerful tools--too powerful, according to some. We argue that the idea that models can "do anything" is wrong, and we describe how their failures have been informative. We present new work showing surprising diversity in the effects of feedback on children's task-switching, such that some children perseverate despite this…

The concept of "perpetual motion" has a long history. The Indian astronomer and mathematician Bhaskara II (12th century) was the first person to describe a perpetual motion (PM) machine. An example of a 13th-century PM machine is shown in Fig. 1. Although the law of conservation of energy clearly implies the impossibility of PM construction, over…

Harold Guetzkow displayed great determination and a remarkable ability to push boundaries. In this article, I describe how these features have had an impact across generations, both in the social sciences and at Northwestern University. In so doing, I touch on the development of experiments in political science and the rise of political psychology.

We examined college students' participation in a game activity for studying course material on their subsequent quiz performance. Game conditions were alternated with another activity counterbalanced across two groups of students in a multielement design. Overall, the mean percentage correct on quizzes was higher during the game condition than…

This article reports on a simulation training program for school leaders at Syracuse University. The project is creating a series of parent, teacher, student, and community-member roles to help principals and teachers learn how to handle tricky conversations. Supported by a three-year grant from the U.S. Department of Education's Institute of…

The digital mediation resources used in Distance Education can hinder the teacher's perception about the student's state of mind. However, the textual expression in natural language is widely encouraged in most Distance Education courses, through the use of Virtual Learning Environments and other digital tools. This fact has motivated research…

Opening with the history, recent advances, and emerging ways to use avatar-based virtual reality, an instructor who has used virtual environments since 2007 shares how these environments bring more options to community building, teaching, and education. With the open-source movement, where the source code for virtual environments was made…

P-12 students who have mobility limitations often face environmental and social barriers that have an impact on educational performance; thus, teachers who work with these students need to have an understanding of these barriers. One potential way for teachers to understand environmental and social barriers is to experience them from a first-hand…

This project work addresses the crucial need to encourage undergraduate civil and environmental engineering students to gain employment skills and training right from the start of their studies so that their overall employability increases; their confidence level in networking with industry and within the workplace increases; and so that they are…

Space has fascinated and intrigued humans of all ages since time immemorial, and continues to do so today. The natural curiosity is engaged when looking up into the sky, notice patterns among celestial objects such as the Sun, Moon, and stars, and wonder. Scientific understanding of those patterns has progressed immensely over the span of human…

The purpose of this study was to determine if participants could improve their social interaction skills by participating in a virtual immersive environment. The participants used a developing virtual reality head-mounted display to engage themselves in a fully-immersive environment. While in the environment, participants had an opportunity to…

With increasing cultural diversity as a result of globalization, intercultural competence (IC) to interact and co-exist in multicultural environments is recognized as being very important. Research indicates that cultural knowledge alone, or even being immersed in a different cultural environment does not necessarily lead to the development of IC…

This article combines statistical and applied research perspective showing problems that might arise when measurement error in multilevel compositional effects analysis is ignored. This article focuses on data where independent variables are constructed measures. Simulation studies are conducted evaluating methods that could overcome the…