Researchers design diagnostic assessments to measure students' knowledge structures and processing skills to provide information about their cognitive attribute. The purpose of this study is to determine the instrument's validity and score reliability, as well as to investigate the use of classical test theory to identify item characteristics. The…

This study aims to test the validity and reliability of the IoJEPD model instrument to improve the competence of elementary school teachers. This study uses content validity. Quantitative methods and professional experts are the considerations used in this research. The stage of proving the validity of this instrument is carried out utilizing a…

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…

The complexity of the reproductive system necessitates instructional media to facilitate comprehension, as its processes unfold internally and are not readily observable. This study aims to assess the viability of booklet sub-materials on fertilization, gestation, and childbirth, derived from the inventory findings of medicinal plants for…

Assessing preservice' higher order thinking skills (HOTS) in science and mathematics is essential. Teachers' HOTS ability is closely related to their ability to create HOTS-type science and mathematics problems. Among various types of HOTS, one is Bloomian HOTS. To facilitate the preservice teacher to create problems in those subjects, an Android…

This study aimed to develop a two-tier light concept test to identify student concept understanding of light. The development of the test was carried out through the content validity, construct validity, and reliability test stages using the Item Response Theory (IRT). The sample consisted of 81 students during the second semester at five…

Critical thinking ability and character education seem to be interesting educational topics that are being discussed in the digital era of 21st century. It is necessary to optimize the character education in the learning process earlier using various learning media. The aim of this study is to investigate the influence learning process of legend…

Many researchers have separately developed instruments to measure environmental characteristics such as attitudes, values, and knowledge. However, there is no instrument used to measure all these aspects in one comprehensive instrument. This study is meant to develop and validate a green character instrument which reveals student behavior and…

The purpose of this research was to develop a curriculum design evaluation instrument in strengthening Al-Irsyad ideology. The research activity began with a literature review on the curriculum then continues with the development of the instrument. The results of the development of the instrument items were validated by 11 experts and tested on a…

The purpose of this study was to construct a higher-order thinking test of science for pre-service elementary school teachers. The test was created using the ADDIE model. The analysis stage was carried out by identifying the needs and baseline of higher-order thinking skills of students from the department of primary School Teacher education in…

This study aims to design mathematical literacy instruments that have evidence of content and construct validity and are reliable for use as an assessment for learning. The research involved eight experts as instrument validators and 273 eighth-grade students of junior high school in Yogyakarta Province. The results showed that the ten…

This study aimed to find a valid and reliable self-assessment procedure and instrument to measure the spiritual and social attitude domain of Belief and Morality (Aqidah Akhlak) subject in Madrasah Tsanawiyah by implementing Borg & Gall's research and development model. The instruments' content validity was analyzed using the Aiken formula,…

Sustainable lecturer performance mapping needed a valid evaluation model. The absence of such a model brings about lecturer performance evaluation which was neither systematic nor sustainable. The study aimed to develop a valid and reliable model of lecturer performance evaluation. This research was a development research model. The model…

The purpose of this study was to develop the Critical Thinking Disposition Test in Biology as an alternative instrument in looking at the extent of one's disposition to critical thinking, especially in Biology University. Critical Thinking Disposition Tests in Biology are tests in the form of multiple choice based on biological cases. This…

Purpose: This study investigated the content and construct validity of the Reflective-Metacognitive Learning (RML) Model, and the effectiveness of the RML Model in comparison with Cognitive-Metacognitive Learning (CML) Model in improving students' metacognitive knowledge, skills, and awareness after the learning process. Methodology: This…