Enzyme-linked immunosorbent assay (ELISA) is a valuable tool in various chemical and biological fields for investigating the presence and quantity of proteins of interest in given samples. The high importance of the assay makes it widely used in biological research and hence a crucial skill to master for up-and-coming scientists. A major…

Traditionally, content assessments have been carried out through written language. However, the latest standards in U.S. K-12 education expect all students, including English learners (ELs), to demonstrate their content learning using multiple modalities. This study examined the performance of fifth-grade students at varying levels of English…

This study was conducted to examine the achievements of students in the concepts of light and shadow measured in different assessment formats according to the learning style and gender. In this study, correlational survey model was used. The sample consisted of 10th grade (16 years) high school students (n=815) from different types of six high…

Contribution: There are many on-line resources available to learn about optics and photonics, but no assessment tools exist to evaluate the learning achievements. This paper presents an assessment framework whose validity has been proven on a course with over 70 engineering students. Background: There is evidence that on-line resources complement…

A primary goal of university instruction is the students' demonstration of improved, highly developed critical thinking (CT) skills. However, how do faculty encourage CT and its potential concomitant increase in student workload without negatively impacting student perceptions of the course? In this investigation, an advanced biology course is…

Describes the construction of assessments on inclines and friction from blueprints--or shells--which address the tasks of planning, hands-on, analysis, and application. Examines the reliability and validity of the assessments as well as the comparability of the assessments generated with the shell. Contains 48 references. (Author/WRM)

Suggests improvements for implementation of the "Views on Science-Technology-Society" instrument. Analyzes the scaling properties of some scoring procedures within the unique response model and discusses ways to produce "best fidelity" measurements. Presents a multiple-response model that could take advantage of all the…

The purpose of this document is to provide teachers, administrators, students, and parents with samples of students' performances that exemplify standards in relation to the 1993 Grade 9 Science Performance-Based Assessment Tasks for the province of Alberta, Canada. A sample of 698 randomly selected students from 31 schools did the…

Promotes the use of machine-scored tests in basic engineering science classes. Discusses some principles and practices of machine-scored testing. Provides several example test items. Argues that such tests can be used to enhance basic understanding of concepts and problem solving skills. (TW)