The objective of this study was to develop and validate the Psychobiosocial Experience Semantic Differential in Physical Education (PESD-PE) scale, a new holistic measure of discrete emotion-related feelings (i.e., psychobiosocial experiences) as conceived within the individual zones of optimal functioning (IZOF) framework. A preliminary version…

The purpose of this study is to develop and validate based on construct validity and sampling validity on a self-confidence scale that can measure student self-confidence at the high school level by adapting self-confidence indicators and adjusting indicators according to the character of students in Indonesia with an age range of 16-18 years. A…

This study aims to develop Nature of Science (NOS) measurement instrument for high school students in the Mathematics and Natural Sciences program using COVID-19 cases that had occurred since the end of 2019. This study also attempts to validate test items with the Rasch model approach. The participants in this study are 194 high school students…

The Assessment of Written Expression Adaptivity for Assistive Technology (AWE ADAPT for AT) was developed to examine written expression participation in high school-age clients to aid the identification of assistive technology (AT) tools that can be recommended to optimize written expression. The tool is guided by the Occupational Adaptation (OA)…

The main purpose of the research is to develop a valid and reliable scale for the perception of the desire to obtain legal authority in education administration. The sampling of the research consists of 390 education administrators and teachers with different statuses. Using the easily accessible sampling technique, the types of official primary,…

Considering the crucial role of education in offering mitigation and adaptation strategies for climate change, there is a clear need for objective tools to assess its impact on the understanding of the issue among secondary school students. This paper describes the methodological design used to build and validate an instrument that explores…

The aim of this study was to develop and validate a psychometrically-sound instrument to assess students' perceptions about class cohesion. Two studies were conducted. In Study 1, four steps were established: (1) development of the Class Cohesion Questionnaire (CCQ); (2) item selection; (3) item compression; and (4) exploration of psychometric…

The present study has aimed to develop and validate a protein concept inventory (PCI) consisting of 25 multiple-choice (MC) questions to assess students' understanding of protein, which is a fundamental concept across different biology disciplines. The development process of the PCI involved a literature review to identify protein-related content,…

The main aim of this study is to develop a useful, valid, and reliable two-tier proportional reasoning skill test for middle school 7th and 8th-grade students. The research was carried out using the sequential explanatory mixed method. The study group of this research comprised of 391 (n[subscript 7th-grade]=223, n[subscript 8th-grade]=168)…

Anger is a topic that requires intervention from teachers, counsellors, psychologists, parents, and all communities. The expressions of anger are subjective and sometimes hard to identify. Thus, anger should be measured more objectively, while the expressions need to be examined closely. The purpose of this study is to provide valid confirmation…

In this study, a valid and reliable scale (TSSSSS) was aimed to develop to measure secondary school students' perceptions of teacher support. The research was carried out on a total of 773 students studying in 6 different secondary schools in Ankara's Yenimahalle district in the Spring Term of the 2021-2022 Academic Year. The students who…

This study aimed to design and validate the Teacher-Reported Reading Engagement Survey (TRRES) to complement self-reported measures and comprehensively assess reading engagement among adolescents. Drawing insights from literature and expert feedback, a new 10-item Likert scale instrument was created, capturing three facets of reading engagement:…

The current paper aims at developing and validating a Teacher Leadership Inventory (TLI). Adopting the theoretical-empirical strategy of instrument development, the procedure consisted of taking a sample of panel experts and undertaking six sequential empirical studies with sufficient samples of teacher leaders from China. After verifying content…

Although research has consistently highlighted the importance of school adjustment for high school students, validated tools for assessing this construct are currently lacking. To address this gap, our study aimed to develop and validate a scale to measure school adjustment among high school students. Employing a two-stage approach, we first…

Previous studies noted the scantiness of diagnostic instruments for the assessment of students' understanding of fundamental biochemistry concepts. Consequently, within this study, a four-tier test for the examination of secondary school students' conceptual understanding of amino acids, proteins, and enzymes has been developed. Items in the test…