The chapters in this online volume comprise the TIMSS & PIRLS International Study Center's technical report of the methods and procedures used to develop, implement, and report the results of TIMSS 2019. There were various technical challenges because TIMSS 2019 was the initial phase of the transition to eTIMSS, with approximately half the…

The Spring 2020 Nebraska Student-Centered Assessment System (NSCAS) General Summative testing was cancelled due to COVID-19. This technical report documents the processes and procedures that had been implemented to support the Spring 2020 assessments prior to the cancellation. The following sections are presented in this technical report: (1)…

This is the 21st report by the National Center on Educational Outcomes (NCEO) that describes how states publicly report assessment data for students with disabilities in K-12 schools in the United States. The purpose of this report is to examine the extent to which states reported 2017-18 assessment data for students with disabilities "to the…

Assessment and evaluation have always been an integral part of educational process. Quality and purposeful assessment can assist in students' learning and their achievement. While there has been a rapid growth in international, standardized student assessments in the past few decades, a large number of education systems participating in these…

This article addresses the issue of language-related construct-irrelevant variance on content area tests from the perspective of systemic functional linguistics. We propose that the construct relevance of language used in content area assessments, and consequent claims of construct-irrelevant variance and bias, should be determined according to…

The purpose of this study was to apply two types of Differential Item Functioning (DIF), net and global DIF, as well as the framework of Differential Step Functioning (DSF) to real testing data to investigate measurement invariance related to test language. Data from the Program for International Student Assessment (PISA)-2006 polytomously scored…

The development of multimedia based on science, technology, engineering, and mathematics (STEM) to empower students critical thinking skills has not been optimally carried out. The purpose of this research was to develop multimedia of human anatomy and physiology material based on STEM which improve students' critical thinking skills. This…

The aim of this study was to develop a Scientific Process Skills Test (SPST) in the context of ''Matter and its Nature''. It was investigated whether there was a predictive effect of demographical features and participating out-of-school learning opportunities across the 7th and 8th grade students' Scientific Process Skill (SPS) levels.…

A general consensus exists among the leaders of both developed and developing nations that their citizens should be scientifically literate. Therefore, it is important for educational systems to provide students with access to pertinent scientific knowledge, an appreciation for the scientific processes, and the ability to evaluate scientific…

Organic Chemistry is a required course for programs in chemistry, biology, and many health science careers. It has historically been considered a highly challenging course with significant failure rates. As with many science disciplines, the teaching of Organic Chemistry has traditionally focused on unstructured exposition-centered delivery of…

To address the need for effective, efficient ways to apply active learning in undergraduate biology courses, in this paper, we propose a problem-centered approach that utilizes supplemental web-based instructional materials based on principles of active learning. We compared two supplementary web-based modules using active learning strategies: the…

This study aimed to ascertain misconceptions of students about basic physical concepts in the "Force and Motion" unit of secondary school seventh class curriculum, to eliminate the misconceptions with created argument environment and traditional approaches after evaluated, and categorize these misconceptions in an ontological sense.…

Purpose: The purpose of this study was to find out primary school students' basic process skills (BPSs) in terms of select variables. In addition, this study aims to investigate the relationship between BPSs and academic achievement. Research Methods: The study had a survey design and was conducted with 1272 primary school students. The study data…

Over the last decades, the percentage of the age group choosing to pursue university studies has increased significantly across the world. At the same time, there are university teachers who believe that the standards have fallen. There is little research on whether students nowadays demonstrate knowledge or abilities similar to that of the…

Comic strips on newspapers, magazines and Internet are one of the most accessible materials that may be used in science classroom as instructional tool. However, it is sometimes difficult to find and adapt appropriate comic strips useful for instructional purposes, because most of them are irrelevant. The purpose of this study is to develop and…