This study aimed to develop and validate the Creative Problem-Solving Skills Test (CPSS-T), grounded in Torrance's creativity theory, to assess these skills in university students. The CPSS-T consists of five open-ended question types, each designed to measure different aspects of creative problem-solving: Alternative Use, Hypothetical Scenario,…

Background: Childhood apraxia of speech (CAS) is a complex motor speech disorder that requires careful differential diagnosis, particularly in languages where validated diagnostic tools are lacking. The Dynamic Evaluation of Motor Speech Skill (DEMSS) is a widely used tool for identifying CAS, but a Turkish version had not yet been developed.…

C-Test is a gap-filling test designed to measure first and second language proficiency. Over the past four decades, researchers have shown the fit of C-Test data to parametric item response theory (IRT) models, but no study so far has shown the fit of C-Tests to nonparametric IRT models. The purpose of this study is to contribute to the ongoing…

Sense of belonging among students has been studied extensively (Gopalan & Brady, 2020), and has been shown to be a predictor of success, engagement, and well-being in college students. While studies have investigated a sense of belonging amongst specific marginalized groups within a university (e.g. Duran et al., 2020; Lewis et al., 2021; Sims…

In this study, it was aimed to develop a rubric to evaluate the creative story writing skill levels of seventh grade secondary school students. The research was designed in quantitative research method and survey model. In the research, convenience sampling technique was used and 270 students studying at the seventh grade level of secondary school…

Background: This study was conducted to translate The Montreal Children's Hospital Feeding Scale (MCH-FS) into Turkish and to evaluate the psychometric properties of the Turkish version (T-MCH-FS) in children with cerebral palsy (CP). Method: The study involved 160 children (70 children with CP and 90 typically developing children) aged 18 to 72…

This study aimed to develop a scale to measure teachers' digital assessment literacy self-efficacy. Teachers were selected from all regions of Turkey and different branches at primary, secondary, and high school levels to enhance generalization and diversity. The data was collected from 314 teachers for the exploratory factor analysis and 296 for…

Using the basic properties of the base-b representation of rational numbers, we will give an elementary proof of Gauss's lemma: "Every real root of a monic polynomial with integer coefficients is either an integer or irrational." The paper offers a new perspective in understanding the meaning of 'irrational numbers' from a deeper…

Despite continued research into the Community of Inquiry (CoI) framework, the best way to measure each presence of the framework, and in particular social presence, has not been effectively settled in prior research. The purpose of this study was to evaluate the validity of the social presence items in the CoI framework and its subscales, as well…

Purpose: The primary objective of this research paper was to examine the objectivity of the preselected items evaluation (PIE) method, a prevalent translation scoring method deployed by international institutions such as UAntwerpen, UGent and the University of Granada. Design/methodology/approach: This research critically analyzed the scientific…

This study aimed to develop and validate the Teacher Rating Scale of Leadership (TRSL) for assessing leadership in 3- to 6-year-old preschoolers. Developed through observation, interviews, and expert reviews, the TRSL was tested on 995 preschoolers in Zhejiang Province, China. It demonstrated high internal consistency (Cronbach's alpha…

We present a method to compute the power series expansions of e[superscript x] ln (1 + x), sin x, and cos x without relying on mathematical analysis. Using the properties of elementary functions, we determine the coefficients of each series through the method of undetermined coefficients. We have validated our formulae through the use of…

Background: Effectiveness studies that ignore costs can lead to misguided policies. For instance, reducing class sizes gained traction due to positive outcomes on student achievement (Konstantopoulos & Li, 2012; Krueger, 1999), yet cost-effectiveness studies revealed the high-cost relative to its modest benefits (Brewer et al., 1999). More…

The Hearts and Flowers (H&F) task is a computerized executive functioning (EF) assessment that has been used to measure EF from early childhood to adulthood. It provides data on accuracy and reaction time (RT) across three different task blocks (hearts, flowers, and mixed). However, there is a lack of consensus in the field on how to score the…

Contribution: This article presents the development and validation of a novel instrument, the self-efficacy for engineering design (SEED) instrument, using a sample of 257 undergraduate students who studied engineering design (ED) in their mechanical engineering program of study. The SEED instrument consists of 35 self-report survey items…