The purpose of this study was to explore the relationships among the components of preservice science teachers' (PSTs) pedagogical content knowledge (PCK) involving the topic "ozone layer depletion". An open-ended survey was first administered to 216 PSTs in their final year at the Faculty of Education to determine their subject matter…

Video cases are becoming more and more prevalent throughout the United States to assist in the development and growth of preservice teachers' instruction. This research investigates the perspectives of preservice teachers and their naive understandings of the kinds of learning and assistance video cases can provide in their methodology courses.…

Results of a study designed to determine the effectiveness of implementing three-dimensional (3D) stereo images of a human skull in an undergraduate human anatomy online laboratory were gathered and analysed. Mental model theory and its applications to 3D relationships are discussed along with the research results. Quantitative results on 62 pairs…

Background: Constructivist views of learning have brought conceptions of learning to attention again. Conceptions are considered important determinants of effective learning. Students can differ in their conceptions depending on their educational experience. Aims: The present study investigated students' conceptions of constructivist learning. Do…

Relationships between self-assessed health status and socio-demographic variables were examined among 4,502 Chinese adolescent secondary school students in Hong Kong, a modern society with traditional Chinese ethno-cultural origin. Health status was self-rated in four aspects: overall health, physical health, mental health, and health effects on…

Background: While studies have determined the importance of physical activity in advancing health outcomes, relatively few have explored the relationship between exercise and various health behaviors of adolescents. The purpose of this study is to examine the relationship between frequency and intensity of physical activity and both health risk…

This paper empirically examines the relationship between advantage, social capital and health status to assess (a) whether social capital adds explanatory power to what we already know about the relationship between advantage and health and (b) whether social capital adds anything beyond its component parts, namely social participation and trust.…

The present study is an examination of the contribution of bilingualism to trilingualism, namely the influence of learning two different orthographies on learning a third. The participants were two groups of sixth graders from Israeli schools who were studying English as a foreign (second or third) language: Russian Israeli children for whom…

Written interaction between pre-service teachers engaged in progressive inquiry using Knowledge Forum in two intense summer courses were analyzed to detect and rank those students in terms knowledge sharing, pressing on for further inquiry and the number of partners they communicated with. Social network analysis techniques were employed to…

Social relations of second grade students (247 boys, 290 girls) were examined in rural elementary classrooms. Cluster analysis of teacher ratings was used to identify interpersonal competence configurations including perceived unpopular-aggressive (i.e., "Troubled") and perceived popular-aggressive (i.e., "Tough") subtypes for…

The processing of gaze cues plays an important role in social interactions, and mutual gaze in particular is relevant for natural as well as video-mediated communications. Mutual gaze occurs when an observer looks at or in the direction of the eyes of another person. The authors chose the metaphor of a cone of gaze to characterize this range of…

In recent years a number of multivariate approaches have been introduced to map neural systems in health and disease. In this review, we focus on spatial covariance methods applied to functional imaging data to identify patterns of regional activity associated with behavior. In the rest state, this form of network analysis can be used to detect…

Research has established that academic intrinsic motivation, enjoyment of school learning without receipt of external rewards, significantly declines across childhood through adolescence. Math intrinsic motivation evidences the most severe decline compared with other subject areas. This study addresses this developmental decline in math intrinsic…

We use clustering, an analysis method not presently common to the physics education research community, to group and characterize student responses to written questions about two-dimensional kinematics. Previously, clustering has been used to analyze multiple-choice data; we analyze free-response data that includes both sketches of vectors and…

This exploratory study was designed to address how multiple factors drawn from varying focal models and ecological levels of influence might operate relative to each other to predict partner aggression, using data from 453 representatively sampled couples. The resulting cross-validated models predicted approximately 50% of the variance in men's…