Autism spectrum disorder symptom emergence is heterogeneous, yet literature comparing young children diagnosed early versus later is relatively scant. Toddlers diagnosed with autism spectrum disorder between 12 and 18 months (n = 20), 19 and 24 months (n = 65), or 25 and 41 months (n = 27) were compared on demographics, developmental functioning,…

The beneficial relationship of school climate with various positive student outcomes has been demonstrated in several studies, though the relationship has not been thoroughly explored with regards to a student's likelihood of being suspended from school. The relationship of school climate and out-of-school suspensions was investigated using a…

Purpose: Wide interindividual variability characterizes language development in the general and at-risk populations of up to 3 years of age. We adopted a complex approach that considers multiple aspects of lexical and grammatical skills to identify language profiles in low-risk preterm and full-term children. We also investigated biological and…

Homeschooling, where parents take on the prime responsibility for their children's education, is a growing phenomenon in Australia. Homeschooling is different from distance education or the education at home that has taken place in the COVID-19 pandemic in that the parents make all the decisions about their children's education, including…

Embodied learning tools (ELTs), such as building and manipulating models, bolster students' learning of spatially demanding science content, such as stereochemistry. However, studies comparing the effectiveness of virtual to physical ELTs on student learning are limited. This study compares online instruction using a virtual ELT, virtual models,…

Introduction: Prior research consistently provides evidence supporting potential relationships between epistemological beliefs and learning. The current study examines the relationship between epistemological beliefs, academic motivation, and self-regulated learning strategies among different ethnic groups of American adolescents. Method: This…

The paper presents a specific case of how interdisciplinary approach to teaching elementary mathematics can be conceived. In this context, the mathematical concept of circle is delivered through physical education environment, during a lesson aimed at speed training. The rationale for this approach is that a teacher at the primary stage in…

Pre-algebra mathematical competencies were assessed for a large and diverse sample of sixth graders (n = 1,926), including whole number and fractions arithmetic, conceptual understanding of equality and fractions magnitudes, and the fractions number line. The goal was to determine if there were clusters of students with similar patterns of…

The aim of the present study is to develop a national non-verbal cognitive ability test in Turkey. Test items were developed during the first stage and applied as a pilot study on 3,073 children in the age interval of 4 to 13. The test was given its final form based on the values of item difficulty, item distinctiveness, item total score…

This study evaluated the psychometric quality of a computerized adaptive testing (CAT) version of the general cognitive ability test (GCAT), using a simulation study protocol put forth by Han, K. T. (2018a). For the needs of the analysis, three different sets of items were generated, providing an item pool of 165 items. Before evaluating the…

To successfully pull a practical joke on someone, children need to understand that their victims do not know what they themselves know, be able to intentionally manipulate others' beliefs, and maintain a straight face to safeguard the integrity of the joke. This study examined the relationship between children's developing theory of mind (ToM),…

Purpose: This conceptual paper explores a novel model explaining teachers' perceptions of their effective leader through the lens of implicit leadership theory (ILT), using the concepts of school principals' sense-making and cognitive complexity (CC). Design/methodology/approach: The sense-making framework and CC theory were used to explain ILT,…

Universal Design for Learning (UDL) holds considerable promise to create inclusive educational environments. Nevertheless, the most recent theoretical UDL model, which includes both teachers' philosophy and praxis of teaching, has never been tested empirically. Therefore, this study aims to validate the UDL model as a "whole" among…

The development of an expressive language score for people with autism based on the ADOS-2 was recently reported by Mazurek et al. (2019). The current study examined the construct validity of the ADOS-2 expressive language score (ELS) in a sample of adolescents with fragile X syndrome (n = 45, 10 girls), a neurodevelopmental disorder with high…

Over several years, first-year pre-service education students regularly experienced difficulty with engineering graphics activities. Research has already established that these activities require the use of well-developed spatial visualisation which is, for the most part, determined by a persons' spatial experience. The importance of this study…