Critical thinking stands out as one of the most important cognitive abilities needed for effective adaptation to a knowledge-based society in the 21st century. Despite its significance, there remains a lack of consensus regarding the conceptual and methodological frameworks for measuring it. This study aimed to design and validate a comprehensive…

Learner satisfaction is an important element in online learning because it impacts achievement motivation, success, and retention. It was the purpose of this study to develop an instrument that measures the satisfaction of learners in online learning environments. Data were collected from 335 students at higher education institutions. The Online…

It is fundamental for language teachers to assess their students' performance. Therefore, they should be familiar with various forms of assessments because teaching and assessing languages are closely related and have a great deal to do with one another. This study examined EFL preservice teachers' perceptions of assessment literacy at a…

A major challenge to promoting effective early science and engineering education is the lack of reliable and validated assessments that align with current educational guidelines for science and engineering. Existing early science and engineering assessments either cover a narrow range of concepts and practices and/or are not designed in a way to…

Background: A growing number of surveys are conducted online where respondents can choose to complete the questionnaire (Lehdonvirta et al., 2020). As respondents are self-selected, there is potential that the respondents will not be an accurate representation of the population. For example, white people are disproportionately more likely to…

No research has been conducted on PTSD manifestation in children with severe or moderate intellectual disability (SID; IQ 20-49) and no PTSD measurement instrument was available. This pilot explores the psychometric properties of a new diagnostic instrument to investigate trauma and to classify PTSD in children with SID. The Diagnostic Interview…

Classrooms are complex learning environments, with instruction, climate, and teacher--student interactions playing important roles in students' academic progress. To investigate the learning environments of deaf and hard-of-hearing (DHH) students, we developed a new observational tool called the Quality of the Learning Environment-DHH rating scale…

The field of geometrical optics features a broad knowledge base concerning conceptual learning difficulties and student conceptions. However, in contrast to other areas of physics, no widely used standard test instrument exists to assess middle school students' conceptual knowledge of geometrical optics. This is even more true for other areas of…

In this study, it is aimed to develop a scale to determine the nomophobia levels of adolescents. The study included 884 adolescents aged 10-18. The theoretical basis was created by first reviewing the literature to reveal the structure of nomophobia in adolescents, which is the feature to be measured in the study. Similar scales were taken as a…

While the COVID-19 pandemic significantly transformed post-secondary course delivery formats, little attention has been paid to post-pandemic learner preferences. To address this gap, we designed two scales to advance our understanding of learner preferences for online learning modalities: the Modalities of Digital Education -- Learner Preference…

It is well documented that literacy coaches engage in a wide variety of tasks related and unrelated to their role. However, little is known about their efficacy beliefs related to performing these tasks. In this article we describe the development and initial testing of the Literacy Coaching Self-Efficacy Scale that was designed and created to…

The aim of this study is to determine the effect of sustainable environmental activities aimed at preschool children on raising environmental awareness. The research was conducted at Baglarbasi Kindergarten in the Haliliye district of Sanliurfa Province, Turkey. A total of 101 children aged 4-5 years participated in the study. Sustainable…

The aim of this study is to develop a valid and reliable astronomy attitude scale for secondary school students. The method of this research is a scale development study. The study group of the research consists of 300 students studying in 3 different secondary schools in Turkey in the first semester of the 2022-2023 academic year. A 32-item…

Gas Turbine Engines (GTE) have the highest power-to-weight ratio among Internal Combustion Engines (ICE). Its modularity and ability to utilize various types of fuel make it highly recommended in power plants, naval transportation, and, of course, the most equipped in aviation. The lack of GTEs' real data is increasing a recognized need for…

Since classroom climate is inherently a group level phenomenon, we argue that measures shown to be valid and reliable in multi-level settings are needed. We propose a brief, 5-item measure of classroom climate and demonstrate its reliability and validity in multi-level structural equation models. The measure demonstrated good reliability and we…