Developing L2 learners' productive mastery of vocabulary is a challenging task. Recent research has called for greater attention to understanding how receptive vocabulary may be transformed for productive use (Schmitt, 2019). Using a design-based research methodology, this study investigated adult ESL learners' productive oral vocabulary…

This study explored the influence of school funding and climate on student achievement in Illinois public elementary schools, examining de-identified individual fourth-grade students and their achievement scores during the 2018-19 academic year. Data sources included the Illinois Achievement Readiness (IAR) assessments for reading and math,…

In the literature, studies examined either distributed leadership's (DL), or principal instructional leadership's (PIL) effect on student learning. However, few studies examined the relationship between DL and PIL, and it is unknown to what extent DL supports PIL. We explored this gap by examining both principals' and teachers' perception data of…

Theories of embodied cognition describe language acquisition and representation as dependent on sensorimotor experiences that are collected during learning. Whereas native language words are typically acquired through sensorimotor experiences, foreign language (L2) words are often learned by reading, listening or repeating bilingual word lists.…

Objective: To investigate the longitudinal associations between COVID-19 induced stress (related to COVID-19 restrictions/changes), attention-deficit/hyperactivity disorder (ADHD) symptoms, oppositional symptoms, and mental health outcomes (negative affect, anxiety, depression, and irritability) in children with ADHD during the COVID-19 pandemic.…

The effects of social networking sites (SNS) use are especially significant for students, as they tend to be the most frequent and heavy users of such platforms. In this stream of work, prior research has documented the links between SNS use and academic performance; however, surprisingly, empirical evidence is inconclusive. Whereas previous…

The acquisition of skills by individuals with developmental disabilities typically includes the attainment of a certain mastery criterion. We conducted a survey of practitioners who indicated the most commonly used mastery criterion as 80% accuracy across three consecutive sessions. Based on these results, we conducted a series of three…

Purpose: In single-case treatment studies, researchers may compare client performance during a baseline, nontreatment phase(s) to client performance during intervention phases. Autocorrelation in the data series gathered during such studies increases the likelihood that analysts will detect or fail to detect meaningful differences between baseline…

In this study, it is aimed to investigate the effects of various factors on the performance of the methods used in the determination of differential item functioning (DIF) in the DINA model included in the Cognitive Diagnosis Models. The current study is limited with Logistic Regression and Wald test methods which were used to determine the…

Methods to generate random correlation matrices have been proposed in the literature, but very few instances exist where these correlation matrices are structured or where the statistical properties of the algorithms are known. By relying on the tetrad relation discovered by Spearman and the properties of the beta distribution, an algorithm is…

Innovation is important to organizations' long-lasting success, yet many organizations fail to successfully promote innovation. One factor likely to bear an important influence on whether an organization successfully innovates, but that has received relatively little research attention, is the personality of the CEO. The present research examines…

Purpose: This review article provides a scoping review of the literature on mathematical abilities in developmental language disorder (DLD). Children with DLD typically struggle with learning in school; however, the mechanism by which DLD impacts academic success is unclear. Mathematics involves demands in the multiple domains and therefore holds…

Tendencies to marketization and privatization in higher education, along with other factors, have challenged the idea of higher education as a public good in many countries over the years. China has experienced this situation to some extent. During the last 20 years, this has triggered various discussions on higher education and public good(s) in…

The Vale and Maurelli algorithm is a widely used method that allows researchers to generate multivariate, nonnormal data with user-specified levels of skewness, excess kurtosis, and a correlation structure. Before obtaining the desired correlation structure, a transitional step requires the user to calculate the roots of a cubic polynomial…

Many psychometric measures yield data that are compatible with (a) an essentially unidimensional factor analysis solution and (b) a correlated-factor solution. Deciding which of these structures is the most appropriate and useful is of considerable importance, and various procedures have been proposed to help in this decision. The only fully…