A process model of writing development across the life span

In this article, we provide an overview of writing development from a product perspective and from a process perspective. Then we discuss modifications of the most influential process model of skilled adult writing to explain beginning and developing writing, including a proposed developmental sequence of the emergence of cognitive processes in writing. Next we report the results of two recent dissertations by the second and third authors supervised by the first author aimed toward contrasting developmental issues: (a) specifying the algorithms or rules of thumb beginning and developing writers may use during on-line planning; and (b) investigating the further development of writing processes among skilled adult writers. In the first study, development was conceptualized as a linear process across age groups. In the second study, development was conceptualized as a horizontal process within skilled adult writers who expanded their expertise. Finally, we consider the developmental constraints and the instructional constraints on writing development and argue for a model of writing development in which endogenous and exogenous process variables interact to determine the outcome of the writing development process.     

Policy considerations based on a cost analysis of alternative test formats in large scale science assessments

This article compares the costs of four assessment formats: multiple choice, open ended, laboratory station, and full investigation. The amount of time spent preparing the devices, developing scoring consistency for the devices, and scoring the devices was tracked as the devices were developed. These times are presented by individual item and by complete device. Times are also compared as if 1,000 students completed each assessment. Finally, the times are converted into cost estimates by assuming a potential hourly wage. The data show that a multiple choice item costs the least, and that it is approximately 80 times as much for an open ended item, 300 times as much for a content station, and 500 times as much for a full investigation item. The very large discrepancies in costs are used as a basis to raise several policy issues related to the inclusion of alternative assessment formats in large scale science achievement testing. © 2000 John Wiley & Sons, Inc. J Res Sci Teach 37: 615–626, 2000     

Globalisation and education

This paper analyses the links between globalisation and education. The growth of the global economy has increased opportunities for those countries with good levels of education, but has made growth more difficult for countries with weak levels of education. Countries with good human resources, high savings and good economic policies (chiefly in East and Southeast Asia) have attracted foreign investment and technology, and have experienced fast growth in exports of manufactures and in output per capita. Developed countries find it increasingly difficult to compete with such economies unless they invest in good education, training and skills, leading to high rates of innovation and productivity. Countries with weak levels of human resources have found it more difficult to succeed—and many, especially in Africa, have experienced falling per capita incomes. Globalisation has made it more difficult to build up educational levels in these countries, as public expenditure has been cut during adjustment. Hence virtuous and vicious cycles of development have emerged, with a good spread of education leading to high growth and generating resources for further development of education and, conversely, countries with poor human resources having low or negative growth and reduced potential for building up their educational systems.     

Intentions and beliefs in students' understanding and acceptance of biological evolution

We examined the intersection of students' understanding and acceptance of evolution and their epistemological beliefs and cognitive dispositions. Based on previous research, we hypothesized there would be a relation between understanding and acceptance. We also hypothesized that students who viewed knowledge as changing and who have a disposition toward open‐minded thinking would be more likely to accept the scientific explanation of human evolution, and that beliefs and dispositions would not be related to acceptance of a topic that is generally perceived as noncontroversial. Ninety‐three undergraduate students enrolled in a nonmajors biology class completed measures of their (a) content knowledge of evolution and photosynthesis and respiration; (b) acceptance of theories of animal evolution, human evolution, and photosynthesis; and (c) epistemological beliefs and cognitive dispositions. Although our findings did reveal a significant relation between knowledge and reported acceptance for photosynthesis, there was no relation between knowledge and acceptance of animal or human evolution. Epistemological beliefs were related to acceptance, but only to the acceptance of human evolution. There was no relation between students' epistemological beliefs and their general acceptance of animal evolution or photosynthesis. Three subscales, Ambiguous Information, Actively Open‐Minded Thinking, and Belief Identification, were significantly correlated with understanding evolutionary theory. We argue these findings underscore the importance of intentional level constructs, such as epistemological beliefs and cognitive dispositions, in the learning of potentially controversial topics. © 2003 Wiley Periodicals, Inc. J Res Sci Teach 40: 510–528, 2003     

The cultural politics of constructivist pedagogies: Teacher education reform in the United Republic of Tanzania

This article examines recent educational reforms in Tanzania by looking at the cultural politics of pedagogical change in secondary and teacher education. It presents an ethnography of a teachers college founded on the principles of social constructivism in a country where formalistic, teacher-centered pedagogy is the norm. Using data collected through a year of participant observation, it argues that the cultural, economic, and political dimensions of teachers’ practice need to be considered alongside efforts to reform the country's educational system. It offers contingent constructivism as an alternative to the international consensus on a single model of excellent teaching.     

Perceived Effects of Scholarships on STEM Majors’ Commitment to Teaching in High Need Schools

This study examines the Noyce Program, which provides scholarships for STEM majors in return for teaching in high need schools. The perceptions of 555 scholarship recipients were investigated using hierarchical cluster analysis, confirmatory factor analysis, and Rasch analysis to determine how the scholarship influenced their commitments to teaching in high need schools. The analyses indicated that recipients perceived the scholarship in two ways: it influenced their commitment to complete their certification program and to teach in high need schools. Implications for teacher education programs include that recruitment strategies should identify candidates who are committed to teaching in high need schools and programs should provide experiences to encourage this commitment not just to become certified.     

Randomized controlled trial of effectiveness of pedometers on general practitioners' attitudes to engagement in and promotion of physical activity

Abstract

Pedometers have been identified as a tool for health professionals to promote physical activity. This study, which aimed to evaluate the effectiveness of wearing a pedometer on general practitioners' attitudes to promoting physical activity, was a pragmatic, multi-centred, randomized controlled trial within a primary care trust in England. The participants were 102 general practitioners (GPs). Eighty-five (48 males, 37 females) of the GPs completed pre and post questionnaires, 43 of whom were in the intervention group. Statistical analysis revealed no significant changes between the control and intervention groups for attitude to engage in physical activity (t ₈₃ = 1.13, CI ?0.362 to 0.099) or attitude to promote physical activity in their patients (t ₈₃ = 1.7, CI ?0.593 to 0.045). A higher volume of walking was significantly correlated with a more positive attitude to engage in physical activity (r = 0.58, P < 0.01) but not with a more positive attitude to promoting physical activity. Wearing a pedometer had no significant effect on GPs' attitudes to engaging in physical activity or promoting physical activity in their patients.