When exposed to principal components analysis for the first time, students can sometimes miss the primary purpose of the analysis. Often the focus is solely on data reduction and what to do after the dimensions of the data have been reduced is ignored. The datasets discussed here can be used as an in-class example, a homework assignment, or a…

In U.S. schools, Black and Latinx youth receive disciplinary action at rates greater than their White peers. In the context of systemic racism in the United States, proposed systemic solutions such as school-wide positive behavioral interventions and supports (SWPBIS) should be evaluated for their effectiveness in producing more equitable school…

In spring of 2020, a global pandemic shifted American institutions of higher education into a crisis with unprecedented unknown information, guidelines that changed continuously, and impacted the personal and professional lives of students, faculty and staff. This study examined the relationships (1) between campus size, geographic setting, locus…

Despite policy relevance, longer-term evaluations of educational interventions are relatively rare. A common approach to this problem has been to rely on longitudinal research to determine targets for intervention by looking at the correlation between children's early skills (e.g., preschool numeracy) and medium-term outcomes (e.g., first-grade…

The aim of the present study was to verify the relationship of three aversive personality traits -- Machiavellianism, narcissism and psychopathy, nowadays known by experts as the Dark Triad and burnout syndrome on the sample of vocational technical subject teachers. The study was carried out on a sample of 241 participants (M[subscript age] =…

Background: Few studies have examined associations of public library use and shared book reading to kindergarten children's academic skills. Methods: The study sample consisted of 13,385 kindergarten students enrolled in the Early Childhood Longitudinal Study, Kindergarten Class of 2010-2011 (ECLS-K: 2011). Parents reported on public library use…

Purpose: The purpose of this study is to analyze the indexes of employability assets that affect students' employability in Indigenous contexts. Design/methodology/approach: The study restructures the indicators developed from the survey the authors did for the Vital Outcome Indicators for Community Engagement (VOICE) research project into six…

Purpose: This study examined how participation in the Service Platoon program of The Mission Continues (TMC) impacts self-reported purpose in life (PIL), interpersonal support (IS), and civic engagement (CE) among military veterans. Methods: An online survey was given to military veterans upon initial registration with TMC and again 12 months…

This study explored how the SAT and High School Grade Point Average (HSGPA) can work together to help institutions to confidently admit, place, and support students in their academic majors while promoting student opportunity and success as well as institutional health and success. In particular, this study examined the differential validity of…

Exploration with spreadsheets and reliance on previous skills can lead students to determine the line of best fit. To perform linear regression on a set of data, students in Algebra 2 (or, in principle, Algebra 1) do not have to settle for using the mysterious "black box" of their graphing calculators (or other classroom technologies).…

Physics education research (PER) has long used concept inventories to investigate student learning over time and to compare performance across various student subpopulations. PER has traditionally used normalized gain to explore these questions but has begun to use established methods from other fields, including Cohen's "d," multiple…

Background: Student anxiety about statistics may lead to poorer learning outcomes. Objective: The purpose of this study was to evaluate an exercise designed to teach students in an introductory statistics class the principles of bivariate regression and to emphasize how statistical tools used by psychologists are also implemented in other fields.…

Recent research provides evidence that an intersectional approach to defining reference and focal groups results in a higher percentage of comparisons flagged for potential DIF. The study presented here examined the generalizability of this pattern across methods for examining DIF. While the level of DIF detection differed among the four methods…

Nobel laureates, technological pioneers, and innovative entrepreneurs are unequally distributed across the globe. Their density increases in regions toward the North Pole, toward the South Pole, and very close to the Equator. This geographic anomaly led us to explore whether stressful demands of climatic cold and climatic heat (imposed…

Background: It is important to investigate receipt of vocational rehabilitation (VR) services, service patterns and outcomes for youth with autism, so that limited public resources can be used more efficiently. Method: This study used chi-squared automatic interaction detector, and multivariate logistic regression analysis to investigate…