This study tested two competing models of differential susceptibility and diathesis-stress in a prospective longitudinal study of African American youths (N = 935). It examined whether individual variations in the functioning of the hypothalamic-pituitary-adrenocortical axis at age 11 interact with middle childhood parent-child relationship…

Based on parent questionnaires, we demonstrate the presence of an eating pattern among children with autism spectrum disorder (ASD) that is characterized by both food selectivity and eating in the absence of hunger. Children with ASD were categorized as engaging in eating patterns of selective overeating, selective eating only, overeating only, or…

The purpose of this qualitative study was to analyze how textbooks inform and prepare teachers for handling behaviors and the management of the classroom. By reviewing 55 textbooks provided to the researcher by current midwestern K-12 classroom teachers and administrators, analysis was completed for pre-service and novice teacher stages. Textbooks…

This paper describes our work to determine the naturalistic images that first-time second-semester university calculus students possess for series convergence. We found that the students we interviewed most frequently determined whether a series converged by imagining a process of appending summands into a running total and examining whether this…

Using data from teaching experiments and theories from quantitative reasoning, we built second-order accounts of students' mathematics with regards to how they conceived rate of change through operating on existing quantities. In this report, we explain three different ways STEM undergraduates structurally conceive rate of change as they…

Children with autism spectrum disorder (ASD) often show language delays. Their limited communication skill may lead them to engage in the same disruptive behavior that previously got them what they wanted. Verbal behavior (VB), specifically mand training (MT), is one of the early language intervention strategies used to target language development…

This study enquires into the embodied processes of children in solving multiplication tasks, considering how such processes can expand access to spatial reasoning skills and simultaneously develop students' understanding of multiplication. The analysis focused on four Year 2 students as they completed two embodied tasks. The aim was to understand…

Promoting problem-solving in students is an important aim of secondary science education. There is a mismatch, however, between the complex, ill-structured nature of realistic scientific problems, versus the well-structured problems students are generally confronted with. The current study investigates a teaching-learning strategy that resolves…

The study reported in this paper was part of a larger study that explored pre-service teachers' perceptions of the effectiveness of a problem-based learning (PBL) teaching approach for developing their mathematics pedagogical content knowledge (PCK) and their ability to enact their PCK in a tertiary mathematics education subject. This paper…

We are surrounded by controversy--politics, religion, diets, and even science are all up for debate in our 24/7 world of social media and the internet. With this controversy comes a lot of misinformation and competition with what our students might otherwise be learning in our classrooms. I know this intimately, since I teach fitness and nutrition…

This article revisits and expands upon a previous phenomenographic study characterising the qualitatively different ways in which South African undergraduate physics students may experience the use of +/- signs in one-dimensional kinematics (1DK). We find the original categorisation as applicable for interpreting Swedish university-level students'…

Background and Aims: Echolalia, the repetition of speech, is highly prevalent in school aged children with Autism. Prior research has found that individuals with echolalia use their repetitions to engage in communicatively functional speech, in the absence of self-generated speech. Educators are the natural audience for a wide vary of echoed…

The present study investigated the utility and validity of the Social Emotional Health Survey-Higher Education (SEHS-HE) among Turkish students (N = 345) in higher education. Confirmatory factor analysis found acceptable data-model fit statistics for "a priori" SEHS-HE latent measurement models and its second-order "covitality"…

Monte Carlo (MC) simulation is widely used in many different disciplines in order to analyze problems that involve uncertainty. Simulation decomposition has recently provided a simple, but powerful, advancement to the standard Monte Carlo approach. Its value for better informing decision making has been previously shown in the investment-analysis…

Logistic regression is one of the most fundamental tools in predictive analytics. Graduate business analytics students are often familiarized with implementation of logistic regression using Python, R, SPSS, or other software packages. However, an understanding of the underlying maximum likelihood model and the mechanics of estimation are often…