This study discusses quantile regression methodology and its usefulness in education and social science research. First, quantile regression is defined and its advantages vis-à-vis vis ordinary least squares regression are illustrated. Second, specific comparisons are made between ordinary least squares and quantile regression methods. Third, the…

In the L2 fluency literature there is considerable debate over how best to operationally define pauses and how different pause measures relate to L2 proficiency. This creates a challenge for researchers interested in L2 fluency, and particularly those who are working with groups that vary in L2 proficiency. This article addresses these issues by…

The purpose of this study was to build a Random Forest supervised machine learning model in order to predict musical rater-type classifications based upon a Rasch analysis of raters' differential severity/leniency related to item use. Raw scores (N = 1,704) from 142 raters across nine high school solo and ensemble festivals (grades 9-12) were…

Previous research has noted one's knowledge of and attitudes toward the theory of evolution is negatively predicted by one's political ideology, specifically how conservative the individual identifies, and positively predicted by one's level rational thinking. The present research expands on this past research by examining the roles of political…

Communication Complexity Scale (CCS) scores for 269 minimally verbal participants were examined to determine if communicator behavior and task and communicator characteristics were related to scores in a manner consistent with theoretical and research evidence expectations. Each participant completed an interactive assessment with 6 joint…

This study was conducted to investigate the effect of a Self-Regulation Skills Education Program on self-regulation skills of six-year-old children. The nonequivalent control group was used in the study. The study group consists of 40 children. "General Information Form" and "Preschool Self-Regulation Assessment (PSRA)" were…

Invariance testing and correlational analyses were conducted on a new test anxiety questionnaire, the Test Anxiety Measure for College Students (TAM-C), with 1.050 Australian and U.S. higher education students. The samples were administered the TAM-C along with other questionnaires. Results from the aforementioned analyses supported a modified…

The study explored the self-esteem levels of Junior High School students in Ghana. The researchers used designed classroom activities with local sociocultural themes to improve students' self-esteem levels. Also, we examined students' gender difference and association with their self-esteem scores. A total number of 40 students were selected using…

The quality of the relationship between academic research supervisors and their students has been recognized as the most important determinant of successful and timely postgraduate degree completion. Many functions have been deemed important in facilitating this alliance. However, due to resource constraints and personal capabilities, supervisors…

Students' responses to energy & momentum (EM) concepts were investigated. EM concepts are fundamental and crosscutting in physics. A standardized Energy and Momentum Conceptual Survey (EMCS) test were used to collect quantitative data from 108 first year science students enrolled in a university in Ethiopia. Concentration analysis was used to…

University students with a learning disability (LD) represent a growing fraction of the student population within North America. Although past research has focused on cognitive aspects of living with an LD and/or attention-deficit/hyperactivity disorder (ADHD), social-emotional factors have received less attention. Such factors may play an…

Recently, there has been debate surrounding the potential implementation of the Phonics Screening Check (PSC) in Australian primary schools. The present study sought to investigate the child- and task-related factors influencing the PSC performances of Year 1 Australian students, who had received almost two years of systematic synthetic phonics…

The study compares the standardized test performance of "chess kids" versus their peers. The comparison of score gains to non-chess peers (same grade and same academic percentile) attempts to eliminate the chicken-and-egg issue that often muddles this topic, that is, does chess make kids smarter or do smart kids simply prefer chess. The…

We investigated the influence of context on students' understanding of cross products of vectors using three isomorphic multiple-choice tests asking for the direction of a cross product in different geometrical settings. One version of the test involved the Lorentz force, the second version involved the torque on an electric dipole, and the third…

Studies focus on the importance of developing decision-making skills, which are among thinking skills, at early ages and highlight that these skills, if not developed at early ages, lead to some problems at the later stages of individuals' lives. Curricula on the level of primary school in Turkey, based on their visions, aim to train individuals…