Regression mixture models are a statistical approach used for estimating heterogeneity in effects. This study investigates the impact of sample size on regression mixture's ability to produce "stable" results. Monte Carlo simulations and analysis of resamples from an application data set were used to illustrate the types of problems that…

To reach their goals, companies are on a never-ending search to find new methods for innovation. In order to tackle the complex problems, which cannot be solved by a single person, the implementation of teamwork is assumed to be applicable. With this paper, we propose a framework for Collaboration Support Systems, which aims to enhance team…

The idea of using fingers as a key component in arithmetic development has received a great deal of support, much of which is based on neuroscientific evidence. However, this body of work pays limited attention to how fingers are used and possible different outcomes in arithmetic problem solving. The aim of our paper, based on an analysis of 126…

Collecting data for cross-cultural research is time consuming and expensive. We report on techniques for efficient and effective cross-cultural data collection, drawn from 18 cross-cultural studies we conducted in 22 countries. We discuss research design, site selection and collaboration building, ethical review, cross-site protocol design, data…

Recently, Wilmer III and Costa introduced a method into the mathematics education research literature which they employed to construct solutions to certain classes of ordinary differential equations. In this article, we build on their ideas in the following ways. We establish a link between their approach and the method of successive…

Recently, Robin claimed to introduce clever innovations ('wrinkles') into the mathematics education literature concerning the solutions, and methods of solution, to differential equations. In particular, Robin formulated an iterative scheme in the form of a single integral representation. These ideas were applied to a range of examples involving…

Teachers today work in classrooms where a large proportion of students have mental health disorders. Yet, because these teachers lack training in mental health issues, they often react to these students in ways that cause them to shut down or escalate their aggressive behavior. Other teachers, however, seem to intuitively understand how to connect…

The aim of this paper is to introduce a software that is appropriate for the generalizability theory for not only balanced but also unbalanced data sets. Because it is possible to have unbalanced data sets while conducting a study, the researchers have devised an easy solution, other than deleting data, to balance the design to cope with this…

One of the main goals of gamification in educational settings is to increase student motivation and engagement. To facilitate the design of gamified educational systems, in recent years, studies have proposed various approaches (e.g., methodologies, frameworks and models). One of the main problems, however, is that most of these approaches are…

The purpose of this study was to learn how education doctorate students create the problems of practice researched in their dissertations, and the potential impact of their research on their local contexts to enhance the generation of knowledge. Three research questions guided this study: (1) How do education doctorate students derive their…

This comparative case study utilized oral histories to illuminate the life stories of three Black men who navigated their way through trauma. The goal of the study was to better understand how they navigated education and life experiences to eventually earn doctoral degrees. The findings affirm and illuminate that despite their academic success,…

Most universities provide many opportunities for students to be leaders (Planety, Hussar, Snyder, Provasnik, Kena, Dinkes, KewalRamani, & Kemp, 2008). Providing student leadership opportunities can positively influence the development of leadership qualities to serve students post-graduation (Dugan & Komives, 2007). By placing students in…

Tier 2 behavioral interventions support the development and reinforcement of prosocial behaviors for at-risk students. While popular Tier 2 programs, like check-in check-out (CICO), increase positive adult attention and behavioral feedback, very few include components explicitly aimed at addressing escape-maintained problem behavior. Breaks are…

The purpose of this study was to investigate eight preservice middle and high school mathematics teachers' solution strategies when solving single and multiple proportion problems. Real-world missing-value word problems were used in an interview setting to collect information about preservice teachers' (PSTs) reasoning about proportional…

Many people consider problem solving as a complex process in which variables such as "x," "y" are used. Problems may not be solved by only using "variable." Problem solving can be rationalized and made easier using practical strategies. When especially the development of children at younger ages is considered, it is…