Background: The Nisonger Child Behavior Rating Form (NCBRF) allows for the assessment of frequency and severity of challenging behaviours of individuals with ID with one combined rating. However, frequency and severity rating of challenging behaviours may be in disagreement. Therefore, the efficacy of frequency and severity independent ratings for…

Numerous studies have been conducted using the Survey of Attitudes Toward Statistics-36 (SATS-36). Recently, large-scale assessment studies have begun to examine the extent to which students vary in their statistics attitudes across instructors. Yet, empirical evidence linking student responses to the SATS items to instructor-level constructs is…

Supporting students in making mathematical arguments is an important part of discourse practices in mathematics classrooms. Differences in teachers' support for collective argumentation have been observed and documented, and the importance of the teacher's role in supporting collective argumentation is well established. This article seeks to…

The objective of this paper is to present the conception and validation of the Quality of Educators' Observation and Planning Practices Scale (QEOPPS). The instrument assesses the quality of early childhood educators' observation practices (observing children, collecting information, using the collected information, paying attention to each child)…

The People with Disability's Perception of Family Support Scale was developed in the Chinese language to enable career counsellors, educators, researchers, and policymakers to assess the perceptions of people with a disability regarding their family support for developing vocational rehabilitation services. This study analysed 515 valid…

This paper presents the results of a large-scale study to validate a questionnaire that measures pupils' attitudes towards socioscientific issues (the PASSI questionnaire). We define socioscientific issues (SSI) as those topics that are about complex societal and technological developments that may induce ethical dilemmas. In this study, the term…

This study aims to develop a valid and reliable scale that shows the secondary school mathematics teachers' evaluations of mathematics homework. A literature review was conducted, and a pool of 41 articles have been prepared for this purpose. Five expert academicians in the field of mathematics education were consulted for the content, construct,…

The first batch of graduates in the country under the K-12 curriculum graduated in 2018. Thus, a call for an evaluation of students' acquired competency is essential. That's why, there is a need for the construction of assessment tools. In this study, a valid, reliable, and item quality achievement test in General Mathematics was developed. Eight…

Although Diagnostic Classification Models (DCMs) were introduced to education system decades ago, it seems that these models were not employed for the original aims upon which they had been designed. Using DCMs has been mostly common in analyzing large-scale non-diagnostic tests and these models have been rarely used in developing Cognitive…

Previous research making claims about students' proving capabilities usually only explored one modality (e.g. oral or written arguments). This study compares the written and oral representations of eighth-grade students' mathematical arguments to determine whether the two modalities portray similar understandings. We replicate Stylianides' (2019)…

This article explores the issue of identifying guessers -- with a specific focus on multiple-choice tests. Guessing has long been considered a problem due to the fact that it compromises validity. A test taker scoring higher than they should through guessing does not provide a picture of their actual ability. After an initial description of issues…

In this research, we developed and validate an instrument for assessing high-school students' perceptions of socio-scientific issues (SSI)-based learning in biology. The development of the instrument was carried out using the following four steps: item formulation, content validation, construct validation and reliability calculation. According to…

The aim of this study is to develop a valid and reliable measurement tool that can be used in the evaluation of distance education activities for secondary and high school students during the COVID-19 pandemic. Using a four-stage approach, the Distance Education Opinion Scale (DEOS) was developed and field-tested with a total of 1,514 students. As…

The aim of the study was to developed a scale assessing teachers' perceptions of collective efficacy in schools. The participants were composed of 808 teachers in five different public schools affiliated with Ministry of National Education, Turkey. Construct validity was determined using an exploratory factor analysis (EFA) and confirmatory factor…

The study aimed to develop a measure that enables gifted children to be picked out in early childhood through the nomination of teachers. In order to collect the data, a conceptual framework based on Gardner's theory of multiple intelligences was set to identify gifted children. Once the conceptual framework was created, a 64-item framework…