Background: College students report high levels of stress, which may be exacerbated by the psychoactive ingredients in energy drinks. Little is understood about the relationship between daily hassles and energy drink consumption. Purpose: The purpose of this study was to explore the associations between energy drink consumption patterns and daily…

Applying a structural equations modelling methodology, the study analyses the relationships and effects of self-regulated learning (social interaction learning strategies and motivation) and first-year university experiences on permanence in the sophomore year. The participants are 239 first-year students in different Engineering degrees at a…

A green public sphere is important for the free environmental communication in a country. However, this concept is relatively new to the public in China. Here we show that the PM2.5 event in 2011 play an important role in the formation of a green public sphere in China. First, we reviewed the PM2.5 event in China and the basic theory of green…

Entirely 60 athletes (39 judokas and 21 swimmers) participated in this study that was performed in 2 different branches (contact and contactless). The purpose of this paper was to determine the effect of sports satisfaction on aggression level and stress. Three different scales as the stress scale, aggression scale, and sports satisfaction scale…

The purpose of this paper was to analyze the stress levels of the female wrestlers studying in higher education. The trial group of the research consisted of 52 volunteer female wrestlers studying in higher education in the province Batman. The research data were collected with "Work Stress Scale" developed by House and Rizzo (1972)…

Idaho uses the English Language Arts and Mathematics tests from the Smarter Balanced Assessment Consortium (SBAC) for the Idaho Standard Achievement Tests. ISAT results have been reported almost exclusively as "percent proficient or above" statistics (i.e., the percentage of Idaho students who performed at the "A" level). This…

Vocabulary knowledge is essential to educational progress. High quality vocabulary instruction requires supportive contextual examples to teach word meaning and proper usage. Identifying such contexts by hand for a large number of words can be difficult. In this work, we take a statistical learning approach to engineer a system that predicts…

Psychologists are interested in whether friends and couples share similar personalities or not. However, no statistical models are readily available to test the association between personalities and social relations in the literature. In this study, we develop a statistical model for analyzing social network data with the latent personality traits…

Disaster preparedness is an essential part of the daily hospital operations particularly emergency departments (ED). The increasing threats of mass casualty incidents (MCI), makes it imperative that staff be prepared to participate in all-hazard responses. This project evaluated the effect of training and in-service on the 15'TIL 50 MCI plan,…

Too few studies relating to motivation and wellness have targeted the NCAA Division II student-athlete (SA) population. PURPOSES: To examine differences in SAs' sport motivation (SM) types over three time points as well as multi-dimensional wellness (MDW) levels in SAs during one time point. METHODS: Overall, 530 Division II SAs (nmales = 355,…

Underlying all What Works Clearinghouse (WWC) products are WWC Study Review Guides, which are intended for use by WWC certified reviewers to assess studies against the WWC evidence standards. As part of an ongoing effort to increase transparency, promote collaboration, and encourage widespread use of the WWC standards, the Institute of Education…

Measuring change in an educational or psychological construct over time is often achieved by repeatedly administering the same items to the same examinees over time. When the response data are categorical, item response theory (IRT) model can be used as the measurement model of a second-order latent growth model (referred to as LGM-IRT) to measure…

In causal mediation analysis, the definitions of the natural direct and indirect effects involve potential outcomes that can never be observed, so-called a priori counterfactuals. This conceptual challenge translates into issues in identification, which requires strong and often unverifiable assumptions, including sequential ignorability.…

We use a natural experiment to evaluate sample selection correction methods' performance. In 2007, Michigan began requiring that all students take a college entrance exam, increasing the exam-taking rate from 64 to 99%. We apply different selection correction methods, using different sets of predictors, to the pre-policy exam score data. We then…

Objective: Various statistical methods have been developed to estimate hazard ratios (HRs) from published Kaplan-Meier (KM) curves for the purpose of performing meta-analyses. The objective of this study was to determine the reliability, accuracy, and precision of four commonly used methods by Guyot, Williamson, Parmar, and Hoyle and Henley.…