The studies in this dissertation were conducted to better understand how to measure students' use of multiple representations in introductory science courses by expanding the possibilities of a variable representation assessment (VRA). The VRA is a computer-based assessment originally designed to measure general chemistry students' use of…

Background: Over the past two decades, national attention has emphasized the critical role of early literacy and language instruction in preventing reading difficulties and improved our understanding of how young children learn to read. The research has established that students who are not strong readers by Grade 3 are less likely to build…

This project aimed to describe oral narrative retells of Spanish-English speaking dual language learners (DLLs) and examine relationships with standardized vocabulary assessments. Investigators described oral narrative retells of 145 DLLs in kindergarten and first grade by number of different words (NDW), words per minute (WPM), and…

Value-added measures of educational progress have been used by education researchers and policy-makers to assess the performance of teachers and schools, contributing to performance-related pay and position in school league tables. They are designed to control for all underlying differences between pupils and should therefore provide unbiased…

Even though Cued Speech has been a communication option for 50 years, it has not been widely adopted among users of English or in the country where it was created (i.e., the United States). This situation has led scholars and practitioners in the field of deafness to question whether the original intent of creating this system has been realized…

Children tend to sleep and wake up early and to exhibit daytime sleep episodes. To evaluate the impact of school start times on sleepiness and attention in preschool children, this study compared the temporal patterns of sleep, daytime sleepiness, and the components of attention between children aged 4-6 years that study in the morning (n = 66)…

Deficits in cognitive flexibility are thought to underpin the core symptom of repetitive and restricted patterns of behaviour in autism spectrum disorder (ASD). Studies investigating this relationship, however, report inconsistent results. This is partly due to the variable nature of measures used to assess the construct of flexibility. The main…

The aim of the research is to describe the profile of problem solving ability of secondary student with high mathematical ability in learning based on realistic mathematics supported by ethnomathematics. The study is a descriptive qualitative research. The subject is a 7th grade student in a public secondary school at Semarang regency, Central…

Autism Spectrum Disorder (ASD) is generally associated with difficulties in contextual source memory but not single item memory. There are surprising inconsistencies in the literature, however, that the current study seeks to address by examining item and source memory in age and ability matched groups of 22 ASD and 21 comparison adults. Results…

The terminology that we use to refer to English learners has shifted over the past two decades, from "limited English proficient" to "English language learner" to what is now the preferred term in California and, increasingly, other states: "English learner." Yet, what has not changed is how this category continues to…

Developed by using ARKit, a novel app which can be used to detect position in physics experiments was introduced. The ARKit relies on a new technique. The result of the experiment presented in this study was satisfactory, suggesting that the new technique can be employed in position detection experiments/demonstrations that are conducted using…

Users sometimes face a common and serious problem called disorientation, which is defined as the feeling of being lost in a web-based environment. It is important to determine the reasons for disorientation in order to make the students navigate more efficiently in these environments. The aim of this study is to investigate the relationship…

Spatial split-attention effects have been noted in the research literature, where, under split-attention conditions, integrating text and diagrams has been shown to be effective. From this literature grew the spatial contiguity principle (or spatial contiguity effect), which states that people learn more when related words and pictures are…

Action research is suggested as a way to engage teachers in curriculum development and the betterment of teaching practices in schools based on educational research activities. As in other educational domains, action research in science education is employed with both aims to better understand and develop teaching practices and to contribute to…

Results from a number of studies indicate that the type of light generated by the reflection on the surface of different types of surfaces can influence the spatial visualization ability; however, research provides inconsistent results. Considering this, a quasi-experimental study was conducted to identify the existence of statistically…