STEM education curriculum is an effort mainly targeted for stakeholders to increase students' interest in STEM as well as to meet future workforce demand. Teachers' instructional preparations are an important part to the overall effectiveness of the teaching and learning process. This study focuses on the development and validation process of STEM…

This study aimed to test the construct validity of three different forms of the Fear of Negative Evaluation Scale. The Brief Fear of Negative Evaluation Scale (BFNE), the Brief Fear of Negative Evaluation Scale-Revised (BFNE-II) and the Brief Fear of Negative Evaluation Scale-Straightforward (BFNE-S) were applied to a group of 652 people in total,…

The purpose of this study is to adapt the Professional Learning Activities Scale (PLAS) developed by Geijsel, Sleegers, Stoel, and Krüger (2009) into Turkish through conducting the relevant validity and reliability analyses. This study followed the pathway recommended by Hambleton and Patsula (1999) for the adaptation process. The data we used…

Teacher summative judgements of children's attainment in science, which are statutory at age 11 in England, require consideration of both valid sampling of the construct and reliable comparison of outcomes. In order to develop understanding of the enacted 'trade off' between validity and reliability, this three-year case study, within the Teacher…

Purpose: The goal of this study was to determine whether the results obtained from a 25-utterance conversational language sample were as reliable as those obtained from a 50-utterance sample. Method: Robust conversational language samples from 220 children with typically developing language (106 boys, 114 girls) ranging in age from 3;2 to 7;10…

Identity has been proposed as a mechanism to increase persistence within Science, Technology, Engineering and Mathematics (STEM) education programs. To assess the impact of identity on STEM persistence, measures that produce valid and reliable data within a given STEM discipline need to be employed. Therefore, this study developed and evaluated…

Anxiety often co-occurs with autism spectrum disorder, yet there are few valid and reliable instruments for measuring anxiety in youth with autism spectrum disorder. This article describes the modification of the Pediatric Anxiety Rating Scale for youth with autism spectrum disorder and systematic psychometric evaluation in a well-characterized…

The tragic story of Flint has made it increasingly clear that the public needs to know how to evaluate sources of information. All of this is occurring in the age of "fake news," which heightens our awareness of the challenge of determining veracity. Furthermore, a flood of information can be found at our fingertips 24 hours a day. A…

Children interact with science from the moment of their birth. By means of the scientific experiences they have as a result of this interaction, children acquire numerous skills related to science at the early ages. These scientific skills and children's orientation towards science such as awareness, attitude, proficiency, inquisitiveness, as well…

The study aimed to develop a valid and reliable scale to measure the expectations of students from the discipline program implemented in their schools. The study was conducted with students studying in seven different high schools in fall semester of 2019-2020 school year. As a result of the Confirmatory Factor Analysis (CFA), a 5-point Likert…

Purpose: The purpose of the study is to investigate biomechanical and physiological responses to soccer-specific exercise incorporating an extra-time period (ET) and assess the test-retest reliability of these responses. Methods: Twelve soccer players performed 120 min of soccer-specific exercise. Tri-axial (PL[subscript Total]) and uni-axial…

Preschool teachers' domain-specific professional knowledge is assumed to play an important role in the quality of early childhood education and thus in young children's learning in different areas. Due to a lack of adequate instruments little is known about preschool teachers' science-specific knowledge. In order to develop such a test instrument,…

This study aims to develop a scale in order to determine the organisational learning levels of educational organisations. The scale took its final form after the items were written, experts' opinions were received and pilot applications were implemented. A survey was administered to 267 teachers using a simple random sampling method. An 18-item…

This paper discusses the challenges and lessons learned from conducting observations to measure the quality of classroom practice for a large-scale study of elementary teachers' mathematics instruction. Specifically, this paper shares our process for obtaining valid data for quality of elementary mathematics instruction; what we learned can inform…

Introduction: Personality traits may predict the use of substances in individuals with mild intellectual disabilities (MID) or borderline intellectual functioning (BIF). The Dutch version of the Substance Use Risk Profile Scale (SURPS), adapted for this population, was tested on its psychometric properties. Method: Individuals with MID or BIF (IQ…