Conflict within dyadic interactions as a stimulant for conceptual change in physics

Research suggests that conventional teaching techniques have proved largely ineffective for dealing with the problem of science students’ misconceptions or alternative frameworks. This paper reports an investigation whereby inter‐personal conflict within dyadic interactions is used as a strategy for promoting development towards correct scientific conceptions in specific areas of electrical circuits and mechanics amongst first‐year tertiary physics students. The data indicate that a large number of physics students at the tertiary level hold non‐scientific conceptions of these physical phenomena. The dyadic interaction strategy proved effective as a means of encouraging students to actively and closely consider their own thinking about basic physical concepts. Further, results highlight the importance of inter‐personal conflict in the process of conceptual change.     

Longitudinal confirmatory factor analysis: Common,time‐specific,item‐specific,and residual‐error components of variance

Following Cronbach (1970) and others, it is useful to decompose test score variation into common factor, time‐specific, item‐specific, and residual components. In the traditional approach to factor analysis, only two sources of variance can be estimated: common factor variance and a uniqueness term that confounds specific sources of variation and residual error. When the same items are measured on different occasions, however, it is possible to separate specific variance and residual error. Two approaches, the first‐order approach described by Raffalovich and Bohrnstedt (1987) and a second‐order approach based on Jöreskog and Sörbom (1989; Jöreskog, 1974) are considered initially. The two approaches, although based on different rationales, both suffer a similar weakness in that two of the four sources of variance are confounded. In the Raffalovich and Bohrnstedt approach, time‐specific variance is confounded with common factor variance that generalizes across items and time. In the second‐order approach based on Jöreskog and Sörbom, time‐specific variance is confounded with residual error. Here we demonstrate that by combining features from both approaches we can eliminate these weaknesses and estimate all four of Cronbach's sources of variance, and that this combined approach is easily generalized to a wide variety of applications.     

Distributed leadership and organizational change: Reviewing the evidence

This article explores the relationship between distributed leadership and organizational change. It draws upon the existing literature to consider whether distributed forms of leadership influence development and change in schools. The article examines the research base relating to distributed leadership and organizational outcomes. It focuses on how different patterns or configurations of distributed leadership contribute to organizational development. The article concludes by highlighting issues that require further study and more empirical confirmation. This article is based on a literature review commissioned by the Department for Education and Skills as part of a research project currently being undertaken by Leithwood, K., Day, C., Sammons, P., Harris, A., and Hopkins, D. (2006) ‘Leadership and student outcomes’ and Leithwood, K., Day, C., Sammons, P., Harris, A., and Hopkins, D. (2006) ‘Successful school leadership: What it is and how it influences pupil learning’. London, DFES.     

Endurance of Undergraduate Attitudes Toward Older Adults

This cross-sectional study assessed undergraduate attitudes toward older adults and attitude endurance 3 to 18 months after aging coursework. Survey respondents included 349 students who took an aging elective and 430 comparison students. Aging-elective students indicated more positive attitudes than comparison students. Attitudes did not vary across 3 groups staggered by time elapsed from completing the course until testing (3 to 18 months). 4 variables accounted for the variance in attitudes toward elders at a statistically significant level: majoring in biology, having frequent or occasional contact with unrelated older adults, taking an aging course, and post-course knowledge of aging.     

A Cross-cultural Study of the Development of Artistic Talent,Creativity and Giftedness

In this study, examining the relationships among age, culture, training in the fine arts, the technical and aesthetic properties of drawings, and realized artistic giftedness, the researchers intermixed the juvenile drawings executed by critically acclaimed artists with artworks executed by contemporary North American and Chinese North American children. When judges from the North American culture and from the Chinese North American culture, blind to this mix, assessed the drawings, assessments made by the representatives of both cultures were more alike than they were different. Only the North American judges' assessments, however, suggest that the art students' life drawings were more technically and aesthetically successful, and more creative, on the average, than the non-art students' drawings. These judges also gave the juvenilia the highest scores in technical skill and the lowest scores in creativity independent of technical skill and aesthetic success. Conclusions and implications stress the role of technical skill in the development of artistic potential.     

Instructional Efficiency of Performance Analysis Training for Learners at Different Levels of Competency in Using a Web‐Based EPSS

ABSTRACT The measure of performance improvement potential (Gilbert, 1978) in human performance technology uses an exemplary performance as a criterion against which to measure the potential improvement in the performance of a workforce. The measure is calculated based on the performance efficiency which compares expended resources to productivity. The same notion is used to measure the efficiency of instructional conditions, based on learners' mental effort invested in a learning task compared to their performance. This article compares the efficiency of an instructional condition for three groups of students differentiated by their use of an electronic performance support system (EPSS) to conduct a performance analysis project. The results indicated that the instruction was most efficient for those learners who showed greater competency in using the EPSS. Implications for using this technique as a means of formative evaluation of a course are discussed.     

Cross-cultural Perspectives of Successful Aging: Young Turks and Europeans

Successful aging (SA) has been conceptualized in a number of ways. Despite increasing research into how laypersons define SA, few studies capturing lay perspectives of SA in younger cohorts and in non-English speaking countries have been undertaken. The current study examines cross-cultural perspectives of SA in young (aged 18–35), lay adults from a variety of continental European countries and Turkey. Participants were recruited via snowball sampling from social network sites and invited to participate in an online survey. Persons between 18–35 years from Belgium, Estonia, Germany, Netherlands, Romania, Switzerland, or Turkey were included. Respondents (total: 390; Belgian: 32; Estonian: 96; German: 76; Romanian: 47; Swiss: 39; Dutch: 30; Turkish: 70), were primarily women (56.4%) and students (66.2%), with an average age of 24.1 years (SD 3.7). Personal resources, social and active engagement all emerged as dominant themes across countries, but were articulated in subtly different ways in the participant countries. Positive perspectives, desirable attributes and satisfaction themes were intertwined within themes of acceptance and engagement. The current study provides a first step in the inclusion of geographic and cultural diversity into the SA literature. These results suggest that layperson conceptualizations of SA have broad-sweeping similarities, but further research is required to articulate the nuance of cultural influences on SA.     

The improtance of selected textbook features to science teachers

This paper reports the results of a study of teacher opinions about the features considered important in an ideal textbook. A survey of Queensland high school teachers revealed that they favoured texts that focus on student cognition and which provide useful features such as exercises and practical activities. Differences were found between the preferences of Queensland teachers and the preferences of teachers reported in two American studies. The significance of these differences for writers and publishers is discussed. Specializations: communication and cognition in science. Specializations: science education.