Formal reasoning ability and misconceptions concerning genetics and natural selection

Students often hold misconceptions about natural phenomena. To overcome misconceptions students must become aware of the scientific conceptions, the evidence that bears on the validity of their misconceptions and the scientific conceptions, and they must be able to generate the logical relationships among the evidence and alternative conceptions. Because formal operational reasoning patterns are necessary to generate these logical relationships, it was predicted that, following instruction, formal operational students would hold significantly fewer misconceptions than their concrete operational classmates. To test this hypothesis 131 seventh-grade students were administered an essay test on principles of genetics and natural selection following instruction. Responses were categorized in terms of the number of misconceptions present. The number of misconceptions was compared to reasoning ability (concrete, transitional, formal), mental capacity (<6, 6, 7), verbal intelligence (low, medium, high), and cognitive style (field dependent, intermediate, field independent). The only student variable consistently and significantly related to the number of misconceptions was reasoning ability; thus, support for the major hypothesis of the study was obtained.     

Adult Learner Participation in an Online Degree Program: A program‐level study of voluntary computer‐mediated communication

Several studies examining computer‐mediated communications (CMC) in online courses have found low levels of participation under both voluntary (ungraded) and mandatory (graded) conditions. This is troubling since student participation is widely considered to have a positive impact on performance. Program‐level data were analyzed to explore the relationship between three factors—(1) experience with previous online courses, (2) the course itself, and (3) the instructor—and subsequent participation. All three factors separately impacted participation levels in this voluntary CMC setting. Based on the findings, the authors recommend that researchers using CMC participation level as a study variable consider controlling for three global factors: previous online course experience, course, and instructor. Finally, the relationship between participation level and subsequent performance is tested, and the potential benefits of conducting future CMC research in voluntary discussion settings and with program‐level data are discussed.     

Students’ Perceptions of Coursework in the GCSE: the effects of gender and levels of attainment

Summary Coursework is an integral part of the GCSE framework, valued for its motivational qualities and its curricular validity. It is a common perception, widely reported in the national press and educational media, that coursework can be held at least partly accountable for differential performances at GCSE; coursework, it is argued, advantages girls. This article reports on an analysis of data arising from a project which offered an opportunity to study current and post-GCSE students’ perceptions of coursework. The outcomes indicate that, when categorised by their relative levels of attainment, girls’ and boys’ perceptions show limited evidence of homogeneity. In other words, to suggest that girls’ and boys’ perceptions of coursework are a function of gender is a gross over-simplification. Other factors are at play and further, more specific and tailored research is essential if we are to understand how best to optimise the benefits that are claimed for coursework.     

An Investigation of the Effectiveness of an Evaluation Instrument Designed for Use with Modular Masters Courses in a Range of International Contexts

In a previous paper the construction of an instrument designed to be of use in the evaluation of modular Masters courses for teachers and administrators in international schools was described. Initial impressions of the efficacy of the instrument were encouraging, and its use was extended in a number of ways within the scheme of continuing professional development organised through the Centre for the study of Education in an International Context at the University of Bath. In particular, the evaluation model was extended to three different modules taught in an increased number of Study Centre locations, by different tutors, to groups of different sizes and composition. Under such a range of conditions the question arises of parity of quality in the delivery of the modules, and the usefulness of the evaluation instrument in contributing to an assessment of the quality of teaching and learning was explored. This paper describes the results of an investigation undertaken to test the robustness of the instrument with respect to both the increased range of dimensions involved and the level of detail possible. The outcomes confirm initial impressions of the overall value of the instrument in assessing general levels of satisfaction expressed by participants with respect to a variety of course features, but also indicate the ways in which it could be employed as a tool to evaluate the relative contributions to overall success made by a set of components concerned with the content of the modules, the teaching arrangements, support for participants and the relevance of the modules to the educational work of those taking part.     

Asian Perspectives on European Higher Education

Asia and Europe have long influenced each other by means of international trade, technology transfer, and foreign policy. Today, Asian countries are searching for more competitive answers in an increasingly competitive world. Educational mobility among countries, especially between Asia and Europe, is the key to unlocking the answer. To achieve the desired educational mobility requires bilingualism (English as the common medium for learning and instruction) and quality education with internationally recognized diplomas and degrees in higher education. A future Asian/European Credit Transfer System is imminent and possible with the implementation of ERASMUS ECTS (European Credit Transfer System) and UCTS (UMAP Credit Transfer System) frameworks. The path to success hinges on the application of knowledge management and risk management to this international challenge for improved educational management. By this means, the prospects for greater understanding and greater economic potential and prosperity can be achieved for both Asian and European nations.     

Research on technology and teacher education: Current status and future directions

Within the context of a brief history of information technology in teacher education (ITTE), current research on ITTE is reviewed. It is argued that ITTE research can be categorized into three paradigms: empirical, critical, and interpretive. The need for a clear, multi-paradigmatic approach for future work is emphasized. Examples of exemplary work are cited. Conclusions suggest needs for more sharing of information of “islands of excellence” in work on technology in teacher education, more case studies on diffusion of innovation, more emphasis on bias-related findings from critical theory, and more development and dissemination of resources and tools for using technology effectively in teacher education. Recommendations for further work in the area also include emphasizing instructional design (ID) work to create innovations and recognizing the need for grounded, reflective papers on innovative approaches that have been implemented and studied over several years.     

Association between self-reported health and physical and/or sexual abuse experienced before age 18

OBJECTIVE: The present study evaluated the association between women's health and physical and sexual abuse suffered before age 18. METHODS: A total of 3,568 randomly sampled insured women ages 18-64 completed a telephone interview to assess history of physical only, sexual only, or both physical and sexual abuse before age 18 (Behavioral Risk Factor Surveillance System); and current health (Short Form-36, Center for Epidemiologic Studies-Depression, Presence of Symptoms surveys). Adjusted analyses compared the health of women with physical abuse only, sexual abuse only, or physical and sexual abuse to the health of women without these abuse histories. RESULTS: Poorest health status was observed in women with a history of both physical and sexual child abuse compared to women without these abuse histories. In models that adjusted for age and income, women with both abuse types had increased prevalence of depression (prevalence ratio, 2.16), severe depression (PR, 2.84), physical symptoms (PR range, 1.33 for joint pain to 2.78 for nausea/vomiting), fair/poor health (PR, 1.84), and lower SF-36 scores (3.15-5.40 points lower). Women with physical abuse only or sexual abuse only also had higher prevalence of symptoms and lower SF-36 scores but the associations were not as strong. CONCLUSIONS: This study adds to the literature showing a graded association between multiple adverse events in childhood and adult health.     

Evaluation of a university course to promote physical activity: project GRAD

Project GRAD (Graduate Ready for Activity Daily) evaluates a university course to promote physical activity. In a randomized study, 338 university seniors participated in either an intervention or control course for academic credit, and posttest data were collected on 321. The control course was knowledge-oriented. The intervention course taught behavior change skills in weekly lectures and peer-led labs. Physical activity was assessed with 7-Day Physical Activity Recall interviews. The intervention had no significant effects on men. Among women, the intervention increased total physical activity during leisure, strengthening exercises, and flexibility exercise. This university course had the intended effects of promoting healthful patterns of physical activity among women, but no effects were observed on men, who were more active than women at baseline.     

基于IEEE1394的DV音视频系统的软件设计与实现

分析基于IEEE1394的系统架构,实现数据在1394系统的核心模块IEEE1394、RAW1394、LIB—RAW1394中的传输,研究数字视频的解压缩方法,使数字音视频流能够在IEEE1394总线上传输．