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…

Background/purpose: The purposes of this study were 1) to examine the effectiveness of concept mapping on Grade 10 students' literary analysis skills, 2) to study the participants' satisfaction with concept mapping in learning literary analysis skills, and 3) to establish the construct validity of the learning management plan through confirmatory…

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,…

The education field favors innovations, but innovative schools tend to fade after an initial 'golden age.' According to the new institutional theory, this happens due to the innovative school's need to achieve institutional legitimacy, which encounters several difficulties. This study aims to explore the journey to attaining legitimacy in one…

The purpose of this study is to research the validity and reliability of the Turkish version of Designing my Future Scale developed by Di Maggio et al (2017) for the adolescents. Study had been carried out with 360 students in total who randomly selected from grades 9 and 10 from Namik Kemal High School, Bekir pasa High School and Erenköy High…

This study investigated the effect of situated learning environment in enhancing mathematical reasoning and proof among tenth grade students. To achieve the aim of the study, a pre-posttest of mathematical reasoning and proof was used, and its validity and reliability were verified. The sample of the study consisted of 50 female students who were…

This paper highlights the pedagogical importance of gaps in mathematical proofs to foster students' learning of proofs. We use the notion of 'gap-filling' (Perry & Sternberg, 1986) from literary theory to analyze a task based on a Proof Without Words, which epitomizes the notion of gaps. We demonstrate how students fill in gaps in this…

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…

Constructing formal geometry proofs in is an important topic in the mathematics curriculum. But students' difficulties with proof are well documented. This article focuses on proofs that use triangle congruence postulates in US high school geometry. Examining students' proof reasoning in one-on-one task-based interviews, we analyzed students' oral…

This quantitative study developed a measurement instrument, The Assessment of Historical Perspective-Taking (AHPT), to evaluate historical perspective-taking skills among 15- and 16-year-old students within their United States History classes by adapting an existing measurement instrument developed in Germany. Applying a theoretical framework that…

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,…