This article evaluates a validity argument for the degree to which assessment tasks are able to provide evidence about knowledge that fuses information from a progression of core disciplinary ideas in ecology and a progression for the scientific practice of developing evidence-based explanations. The article describes the interpretive framework…

Biology instructors from middle school to university level recognize that natural selection is an essential topic in the curriculum. Numerous studies have shown the prevalence of many alternative conceptions about evolution that persist despite instruction in student populations all over the world. Having valid, reliable and easily used…

The article argues that science assessment should change from an item-driven to a construct-driven practice and pay more attention to disciplinary scientific reasoning. It investigates assessment scales developed from a novel theoretical rationale, describing scientific reasoning as three fundamental practices (hypothesizing, experimenting, and…

This study examines how students' experimentation with a virtual environment contributes to their understanding of a complex, realistic inquiry problem. We designed a week-long, technology-enhanced inquiry unit on car collisions. The unit uses new technologies to log students' experimentation choices. Physics students (n = 148) in six diverse high…

Correct responses to the unitized items of PISA 2006 rely to differing extents on the contextual stimulus supplied. This difference is referred to in this study as the degree of contextualization. A selection of science items from PISA 2006 has been assigned to two categories, not by competencies as in the framework for the PISA survey, but by the…

The framework developed for the PISA 2006 science survey starts from everyday contexts in which citizens encounter scientific issues and knowledge claims. Recent curriculum changes in England, making possible the introduction of courses for 15- to 16-year olds with an explicit "scientific literacy" emphasis, are based on a very similar…

Despite concerted efforts by science educators to understand patterns of evolutionary reasoning in science students and teachers, the vast majority of evolution education studies have failed to carefully consider or control for item feature effects in knowledge measurement. Our study explores whether robust contextualization patterns emerge within…

In this study we present an analysis of classroom interactions initiated by students' wonderment questions. Our interest in such events arises from their potential to stimulate active intellectual engagement in classrooms, which can impact upon the subsequent development of the classroom discourse. In investigating this issue we shall address the…

Many science educators encourage student experiences of "authentic" science by means of student participation in science-related workplaces. Little research has been done, however, to investigate how "teaching" naturally occurs in such settings, where scientists or technicians normally do not have pedagogical training and generally do not have…

Because the school environment has been shown to play an important role in teacher and student performance, we undertook research into the assessment of school environment, differences between female and male science teachers' perceptions of their school environments, and associations between these school environment perceptions and teachers'…

Summarizes major findings of the Harvard Project Physics research and evaluation activity, including data gathering techniques, descriptions of teacher characteristics, information about student responses and learning environments, and final evaluation year results. Indicates that the evaluation program is characterized by considerable research on…

Discussed is the issue of the appropriateness of applied science approaches to evaluation in environmental education. The relationships between characteristics of applied science approaches to evaluation and the special characteristics of environmental education are explored. (Author/YP)

A university Environmental Sciences curriculum is described against the background of requirements for environmental problem solving for sustainability and then analyzed using data from regular surveys of graduates (N = 373). Three types of multiple regression models examine links between qualifications and curriculum components in order to derive…

Examines, in some detail, the process of evaluation and describes methods that have been used in evaluation applied to precollege education. (PEB)

Presents notion that low science enrollments in high schools are partially related to the severity of grading practices used by science teachers. A model is discussed which assumes that students compare the science grades with grades received in other subjects. Research methodology is suggested. (PS)