Inadequate sleep among adolescents is considered an epidemic in the United States. Late night bedtimes could be an important factor in academic performance and health with consequences continuing throughout adulthood. The purpose of this study was to explore the relationships between late night bedtimes, academic performance (grade point average…

A teacher training program, named Model-Supported Scientific Inquiry Training Program (MSSITP) has been successfully developed to improve the inquiry skills of Indonesian elementary teachers. The skills enhanced by MSSITP are defining problems, formulating hypotheses, planning and doing investigations, drawing conclusions, and communicating the…

This study analysed polytomous items' psychometric properties according to nonparametric item response theory (NIRT) models. Thus, simulated datasets--three different test lengths (10, 20 and 30 items), three sample distributions (normal, right and left skewed) and three samples sizes (100, 250 and 500)--were generated by conducting 20…

The current study addresses a discrepancy in the psycholinguistic literature about the chronology of information processing during the visual recognition of morphologically complex words. "Form-then-meaning" accounts of complex word recognition claim that morphemes are processed as units of form prior to any influence of their meanings,…

This research builds on previous higher education studies and improves the understanding of students' confidence in their chosen business education path with the introduction of a first-year experiential business practicum course. Students' understanding of business disciplines within the early years of academic decision-making has been a…

This study aims to reveal the levels of the use of computer, which is nowadays one of the most important technologies, of teacher candidate studying in the departments of Physical Education and Sport Teaching, and School teaching; also aims to research whether there is differences according to various criteria or not. In research, data were…

Demonstratives and pointing gestures are universal, early emerging, and ubiquitous, and it has long been claimed that there is a special relationship between them. But what exactly is the nature of this relationship? The present study investigates this question using a referential communication task. Speakers referred to targets that were near or…

Children's physical activity (PA) is increasingly restricted by the fast pace of modern life. Schools are the opportune setting in which to increase PA during daily recess. The purpose of this study was to record the degree of PA of 6th grade primary school students during recess and determine whether the playground size and available equipment…

The multilevel latent class model (MLCM) is a multilevel extension of a latent class model (LCM) that is used to analyze nested structure data structure. The nonparametric version of an MLCM assumes a discrete latent variable at a higher-level nesting structure to account for the dependency among observations nested within a higher-level unit. In…

When estimating causal effects, unmeasured confounding and model misspecification are both potential sources of bias. We propose a method to simultaneously address both issues in the form of a semi-parametric sensitivity analysis. In particular, our approach incorporates Bayesian Additive Regression Trees into a two-parameter sensitivity analysis…

Background: Extant research has traditionally associated children's achievement motivation with socio-emotional parental behaviours such as demonstrations of affect, responsiveness, and the degree of parental control. Aims: This study explored the extent to which parental socio-emotional and instructional behaviours (including the contingency…

A framework is introduced for considering dimensionality assessment procedures for multidimensional item response models. The framework characterizes procedures in terms of their confirmatory or exploratory approach, parametric or nonparametric assumptions, and applicability to dichotomous, polytomous, and missing data. Popular and emerging…

In a meta-analysis, it is important to specify a model that adequately describes the effect-size distribution of the underlying population of studies. The conventional normal fixed-effect and normal random-effects models assume a normal effect-size population distribution, conditionally on parameters and covariates. For estimating the mean overall…

Course objectives, like research objectives and product requirements, help provide clarity and direction for faculty and students. Unfortunately, course and laboratory objectives are not always clearly stated. Without a clear set of objectives, it can be hard to design a learning experience and determine whether students are achieving the intended…

The dissertation is an initial investigation of a peer mentoring program in a suburban high school in the southeastern United States. Additionally, the Peer Mentoring Program (PMP) study examined whether the Program improves academic performance and attendance, and decreases referrals. Utilizing an experimental design, a Participant and a…