Mathematical abstraction skills are fundamental for advanced reasoning and problem-solving, yet assessing these skills in senior high school students poses challenges due to limited validated instruments. This study aims to develop and validate a test instrument for measuring mathematical abstraction skills in Indonesian high school students. The…

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 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 purpose of this research is to develop test questions of problem solving ability on work-energy material for high school students class X. This type of research is research and development. The model used in this study is ADDIE with the stages of analyzing, planning, developing, implementing, and evaluating, but this study only up to the…

The importance of the climate of a school has been shown to be correlated to several key factors in education including youth development, academic achievement, and teacher retention. Lee et al. (2017) developed a dual scale which measures both school climate and school identity simultaneously (SCASIM-St). The purpose of this study is to both…

This research that aimed to (1) produce instruments that were feasible to measure the ability to solve physics problems and nationalism, and (2) determine the quality of instruments that have been developed. This research was conducted through four stages, namely the design, preparation of tests, test trials, and preparation of valid instruments.…

This study introduced the Scale of Adolescents' Perceptions Toward Adults (SAPTA), which was developed in Turkey. The validity and reliability study for SAPTA was performed using the data obtained from 1008 high school students whose ages ranged between 14 and 18. The internal consistency coefficient calculated with the Explanatory Factor Analysis…

Assessing fidelity of implementation of school-based interventions is a critical factor in successful implementation and sustainability. The Tiered Fidelity Inventory (TFI) was developed as a comprehensive measure of all three tiers of School-Wide Positive Behavioral Interventions and Supports (SWPBIS) and is intended to measure the extent to…

Using an iterative design along with multiple methodological approaches and a large representative sample, this study presents reliability, validity, and fairness evidence for two surveys measuring student attitudes toward science, technology, engineering, and math (S-STEM) and interest in STEM careers for (a) 4th- through 5th-grade students…

Data produced by psychometric instruments are often used to inform understanding about a certain population's knowledge of ideas or perspectives about specific topics. Concept inventories are an example of psychometric instruments used to probe students' content knowledge within a defined framework. Concept inventories have been used as…

We used two studies to evaluate, modify, and provide initial validation for a revised Academic Hardiness scale. First, 16 experts rated scale items for content validity and identified two problematic questions. Second, confirmatory factor analyses with 300 Grade 10 students (46% boys, age range 14-17) identified a 17-item version to be the best…

This study is aimed at ensuring the validity of the Practical English Certification Test (PECT) of the Chung-nam Office of Education (COE) in Korea. Motivated by the demand for a developing localized English test to empower English learning in public education, the COE conducted the PECT for 38,544 students of elementary, middle and high schools…

The purpose of this study was to develop a valid and reliable scale for preferences of teachers in regard of their curriculum design orientations. Because there was no scale development study similar to this one in Turkey, it was considered as an urgent need to develop such a scale in the study. The sample of the research consisted of 300…

The topic of "teacher professionalism" is one of the most crucial ones in quality education research. It has a potential to generate results that could inform and hence enhance the practice in classrooms. Thus, research in this field needs reliable instruments to measure the professional knowledge of our teachers to be able to generate…

The Transition Awareness & Possibilities Scale (TAPS) was crafted after an extensive review of literature was conducted to find research that examined and described specific aspects of transition programming: inputs, including supports and skill instruction; processes, including parent and support provider perceptions of the transition experience;…