The present paper describes a dynamic investigation of polygons obtained by reflecting an arbitrary point located inside or outside a given polygon through the midpoints of its sides. The activity was based on hypothesizing on the shape of the reflection polygon that would be obtained, testing the hypotheses using dynamic software, and finding a…

Although digital media are in general very common, their role in academic settings and their relevance for academic achievement are not satisfactorily explored. A research gap that is particularly apparent during the corona crisis in 2020 when university processes in many countries are suddenly almost completely digitalised. Research suggests a…

This study aimed to develop a learning progression (LP) for botanical literacy and assess the impact of a garden-based education course on Thai pre-service science teachers (n = 49). The inquiry- and community-based education course was taught over a 15-week period. To measure botanical literacy, a 50-item multiple-choice test was employed. A…

Cross-cultural equivalence, country and gender differences, and external relations with other measures were examined on a new, brief measure of test anxiety, the Test Anxiety Measure for College Students-Short Form (TAMC-SF), in a sample of Canadian and US higher education students. The sample of 1204 students completed the TAMC-SF and other…

Action competence consists of the knowledge, willingness, and self-efficacy for contributing to a controversial issue such as sustainable development. As such, action competence in sustainable development (ACiSD) is a desired outcome of education for sustainable development (ESD). Still, the scarce instruments for measuring ACiSD that have been…

Measurement of mental rotation presents a serious challenge to cognitive researchers owing to the lack of a single comprehensive measure that can be applied across the developing age groups. Objective of the present study was to develop and validate a new measure of mental rotation for preadolescent and adolescent age groups. Items were…

Just as important phenomena such as natural disasters, conflicts and pandemics have effects on people's lives, new technologies also have impacts on people's lives and lifestyles. As a part of COVID-19, many countries have been forced to practice distance education at almost all educational levels. The pandemic of COVID-19 inspired educators to…

Purpose: The purpose of the current study is to develop a valid and reliable screening tool to identify children with risk of developing language difficulties for Estonian-speaking 2- to 3-year-old children. Method: Nine hundred ninety parents of children ages 1;8-3;1 (years;months) filled in the Estonian MacArthur-Bates Communicative Development…

Despite being an important dimension of teachers' professional development, researcherly disposition is not sufficiently emphasized in initial teacher education. Researcherly disposition can be explained as intentional affective, cognitive and operational tendency to follow existing research in specific contexts, engaging in research production…

Students at risk for learning disabilities (LD) are overidentified in elementary schools in Oman due to the absence of adequate instruments which teachers can use in validating their observations. Teachers need valid instruments so that their judgment of students' behaviours can help in making academic and non-academic decision. The Learning…

The aim of this study is to build a measurement tool to survey the aesthetical development of the social network "Instagram" on women and to define its psychometrical qualities. The research is a descriptive and quantitative study designed with a screening model. This Aesthetic Perception Scale is based on a proper literature survey and…

There is growing evidence that science capital (science-related forms of social and cultural capital) and family habitus (dispositions for science) influence STEM career decisions by youth. This study presents reliability and validity evidence for a survey of factors that influence career aspirations in science. Psychometric properties of the…

The current paper was conducted for two aims: the first aim was to adapt the Work Related Flow Inventory (WOLF) developed by Bakker (2008) into Turkish. In this context, the inventory was applied 198 (128 females 64.6% and 70 males 35.4%) teachers working in public schools in Ankara for construct validity and reliability. WOLF, consisting of 13…

Stress arising from the experience of stigma and discrimination around gender identity is known to negatively influence health outcomes for transgender individuals. The Gender Minority Stress and Resilience (GMSR) scale is a validated tool for measuring experiences of minority stress and resilience among transgender individuals. This paper seeks…

The purpose of this report is to present our process and results for establishing validity and reliability of an observation tool used to investigate teaching practices that high school mathematics teachers use to engage students. We developed our tool using established practices, such as reviewing literature to develop a framework for instruction…