Purpose: Speech motor control relies on neural processes for generating sensory expectations using an efference copy mechanism to maintain accurate productions. The N100 auditory event-related potential (ERP) has been identified as a possible neural marker of the efference copy with a reduced amplitude during active listening while speaking when…

Researchers frequently use machine-learning methods in many fields. In the area of detecting fraud in testing, there have been relatively few studies that have used these methods to identify potential testing fraud. In this study, a technical review of a recently developed state-of-the-art algorithm, Extreme Gradient Boosting (XGBoost), is…

In embracing lingocentric educational methods, dance has reinforced dichotomous thinking and traditional dualities of mind/body and language/movement. Formal structures of critical responses to choreography have left out reflective methods that are generative, embodied, and participatory and those that challenge lingocentric methods of feedback.…

Purpose: While the speech motor system is sensitive to feedback perturbations, sensory feedback does not seem to be critical to speech motor production. How the speech motor system is able to be so flexible in its use of sensory feedback remains an open question. Method: We draw on evidence from a variety of disciplines to summarize current…

Using item response theory, this study explores whether student survey and classroom observation items can be calibrated onto a common metric of teaching quality. The data comprises 269 lessons of 141 teachers that were scored on the International Comparative Analysis of Learning and Teaching (ICALT) observation instrument and the My Teacher…

Test score users often demand the reporting of subscores due to their potential diagnostic, remedial, and instructional benefits. Therefore, there is substantial pressure on testing programs to report subscores. However, professional standards require that subscores have to satisfy minimum quality standards before they can be reported. In this…

Friendships are widely considered to be an essential part of life in college and beyond. The existing literature on college friendships, academic achievement, and student attrition is mixed, which may occur as a result of varying ways of defining friendship. This study adds to an understanding of these dynamics by examining both the number of…

Factor loadings and item discrimination parameters play a key role in scale construction. A multitude of heuristics regarding their interpretation are hardwired into practice--for example, neglecting low loadings and assigning items to exactly one scale. We challenge the common sense interpretation of these parameters by providing counterexamples…

Differences in rater judgments that are systematically related to construct-irrelevant characteristics threaten the fairness of rater-mediated writing assessments. Accordingly, it is essential that researchers and practitioners examine the degree to which the psychometric quality of rater judgments is comparable across test-taker subgroups.…

Much has been written about the importance of giving personal attention to children's written work. The focus has been on the effect of this feedback on the writing and on the child. Drawing on the philosophical discourse of the care of the self, I argue that the ways in which a teacher gives feedback informs the development of the teacher.…

This study examines the role of nature in relation to emotional highs in adult learning. Hermeneutic phenomenology was used as an overarching methodology and contained both descriptive and interpretive elements. The methodology enabled access to an exploration of the phenomenon with further interpretation of the experiences of the 21 adults who…

Background: Compared to the general population, individuals with intellectual and developmental disabilities (IDD) more often experience bullying and its negative social and emotional impacts. Prior studies explored bullying of individuals with IDD primarily through investigations of the perspectives of others and the negative impacts of bullying.…

Model selection is important in any statistical analysis, and the primary goal is to find the preferred (or most parsimonious) model, based on certain criteria, from a set of candidate models given data. Several recent publications have employed the deviance information criterion (DIC) to do model selection among different forms of multilevel item…

The Born rule, which describes the formalism for determining probabilities, is one of the most fundamental postulates in quantum mechanics. This paper presents results from an investigation into how students apply the Born rule to determine probabilities for energy and position measurements. The investigation includes two stages with independent…

Many large universities, community colleges and some smaller four-year colleges are turning to hybrid or online instruction for remedial and entry level mathematics courses, often assessed using online exams in a proctored computer lab environment. Faculty face the task of choosing questions from a publisher's text bank with very little, if any,…