In 2020, COVID-19 began to affect adolescents' mental health, particularly cisgender girls and transgender/gender diverse (TGD) adolescents, who previously experienced a greater risk for depression and anxiety disorders than their peers. The present study investigated the moderating effect of gender on internalizing symptoms among three community…

In this paper, we described the development of the High School Wave Optics Test (HSWOT). Firstly, 56 conceptual, multiple-choice items with a single correct answer and three distractors were created. Next, we conducted an initial review of the items which resulted in reducing the item pool to 44 highest quality items. Validity evidence and…

Objective: Transition from school to early adulthood incurs many changes and may be associated with deterioration in general health in youth with autism. We aimed to investigate this. Method: The National Longitudinal Transitions Study-2 is a USA nationally representative sample of youth receiving special education services, aged 13-17 at wave 1,…

Previous research suggests that ruminating on social media content is associated with greater mental distress (Yang et al., 2018). This study examined whether materialistic value orientation (MVO)--prioritizing values and goals related to consumerism, consumption, and social status--predicted social media rumination in a sample of diverse…

This study aimed at analyzing the impact of problem-based learning (PBL) in improving physics students' conceptual understanding of mechanical waves. This study used a quasiexperimental, pretest-post-test control group design with PBL instruction as a teaching intervention. The participants of this study were 239 physics students from 19 secondary…

An individual harmonic wave (i.e., having a single frequency and wavelength over all time and space) traveling in a loss-free medium has a single constant speed, which is equal to the magnitude of the phase velocity of the wave. However, when a set of different harmonic waves are traveling in the same direction, they interfere to form wave…

Electromagnetic (EM) waves are indispensable in modern telecommunications. Despite their essential role in modern technology, EM waves are considered to be an abstract concept by many students. In this activity, an inexpensive two-coil system was constructed in a teaching laboratory and used to demonstrate information transfer by non-sinusoidal EM…

Background: Understanding the properties of sound is difficult for students across all grade levels and even preservice elementary teachers (PSETs). Because of their abstract nature, there are challenges interpreting common features of sound waves. Purpose: The goal of this study is to understand pre-service elementary teachers' (PSETs)…

Due to the impact of COVID-19, children and their parents are spending more time at home, which increases parent--child interactions. The goals of the present study were to examine the mediating effects of children's learning engagement on the relationships of parental involvement in Chinese, English, and math performance and to investigate…

Teaching about wave structure and function is a critical element of any physical science curriculum and supported by "Next Generation Science Standards (NGSS)" PS4: Waves and Their Applications in Technologies for Information Transfer. To support students' learning of these ideas, teachers often rely on developing graphic models of a…

Job exhaustion is not uncommon among Chinese middle school teachers, but the key antecedents of job exhaustion and the underlying mechanisms in this historically underrepresented population remain poorly understood. This study examined the association between job demand and exhaustion, and tested the mediating role of job satisfaction and the…

Links between mathematical attainment and economic performance, coupled with England's poor showing in international comparisons of skills, have focussed attention on post-16 mathematics education, for example, in the UK Government's 2017 Industrial Strategy. Whilst high-stakes academic qualifications at 16 (GCSE) and 18 (A-level) have stood the…

The present study provides an insight into foreign language policy endeavour in Algeria. It responds to the concept of an English 'tidal wave' (Spolsky [2004]. "Language policy." Cambridge University Press), and uses Spolsky's ([2009]. "Language management." Cambridge University Press) social approach and Djité's ([1994].…

This paper traces the trajectories of multiracial college student development theories through the three waves conceptualized by Jones and Stewart (2016) to inform future directions in critical mixed race scholarship and praxis. Within each wave, the author examines the utility and limitations of each paradigmatic perspective to construct their…

In content and language integrated learning (CLIL) classrooms, it is assumed that non-language content subjects provide more authentic communicative contexts for students to learn a foreign/second/additional language (L2). However, learning abstract concepts and academic language in an L2 simultaneously is also challenging for CLIL students. It is…