Background/purpose: This study aimed to investigate the differences among the equations used in estimating the reliability coefficient using the half-split method. These equations demonstrate Spearman-Brown's, Rulon's, Guttman's, Mosier's, Flanagan's, and Horst's. Materials/methods: The study instrument was a 43-item scale for evaluating the…

The current study aimed to create and validate a digital literacy assessment tool's quality for students in Grades 10-12 within the Thai educational context, and 2) to develop T-score norms derived from the results of the digital literacy assessment tool for students in Grades 10-12 in this context. The study followed a research and development…

Cosmology concepts encompass complex spatial and temporal relations that are counterintuitive. Cosmology findings, because of their intrinsic interest, are often reported in the public domain with enthusiasm, and students come to cosmology with a range of conceptions some aligned and some at variance with the current science. This makes cosmology…

The aim of the study was to explore same-sex and opposite-sex friendship functions among 12 to 13- and 16 to 17-year-old Hungarian adolescents (n = 304). To explore perceptions of friendship functions, the McGill Friendship Questionnaire (MFQ, 30 items, 6 factors: stimulating companionship, help, intimacy, reliable alliance, self-validation,…

Students' science identity has been identified as an important construct that positively influences their learning engagement, persistence, and career intentions in science. This paper reported the process of developing and validating an instrument that can be used to assess high school students' science identity. The development of this…

We investigated environmental supports, an understudied aspect of Social Cognitive Career Theory (SCCT), with rural Appalachian youth, an understudied population. We developed a new measure of proximal influences that bolster the pursuit of postsecondary education, the Assessment of Postsecondary Supports (APSS). Across 3 studies, we develop and…

School climate measures are important tools that assist educators in evaluating the "norms, values, and expectations that support people feeling socially, emotionally and physically safe" (National School Climate Council, 2007, p. 4). Positive school climate is associated with academic performance indicators such as grade point average,…

This paper describes and evaluates the procedure for the development and validation of the bullying victimisation scale for Pakistani young people aged 12-18 years. During phase I, a total of 60 participants aged from 13 to 17 years were selected by using a multistage sampling strategy for item generation for bullying victimisation. In phase II,…

Character measurement has become increasingly relevant and needed in recent years due to its significant impact on an individual's success in various aspects of life. However, existing methods of character measurement such as self-assessment, peer assessment, and observation, still have many limitations. The Situational Judgement Test (SJT) is a…

This study developed a scale to assess high school students' programming disposition. The scale was developed by utilizing a standardized test development process. The three constructs of the scale, namely confidence, persistence and flexible thinking, consisted of 9 items (3 items on each construct). Participants for the formal test of the scale…

The aim of this study is to develop a valid and reliable scale that can be used in investigating learning process of secondary school students. The study was carried out with students attending to different secondary schools in Mardin in 2018. Survey method was employed, and sampling was chosen with the help of simple random sampling method in…

Background: In many countries and regions, such as the United States, Europe and China, a trend has emerged in which students' enthusiasm for STEM is declining. This decline may be related to students' lack of science self-efficacy. An accurate examination of students' science self-efficacy can provide a research foundation for how to cultivate…

This study sought to develop an Academic School Climate Scale measuring students' perceptions of the learning environments at their schools. With a pilot sample of 1,265 students and validation sample of 14,773 students in Grades 4-12 in schools across the U.S., results of EFA and CFA supported a bifactor model with a general factor and three…

The main purpose of this study was to design and verify the quality of an assessment aimed at diagnosing scientific misconceptions among students enrolled in 10th-grade biology subjects. A sample consisted of N=200 students from schools under the administration of the Office of Secondary Educational Service 31, Nakhon Ratchasima province. We…

Understanding students' perceptions of Christian education is essential for schools seeking to make changes that enhance opportunities for students to understand and engage with Christian faith. This study introduces and describes the validation of an accessible survey that probes students' perceptions of the Christian culture of their school and…