Options,sustainability policy and the spontaneous order

This paper examines the implications for sustainability policy of environmental uncertainty and indeterminacy, and relates the associated problems with a conventional understanding of sustainable development to Hayek’s critique of collective planning. It suggests that the appropriate recourse is not, however, a Hayekian endorsement of the free market, but an extension of his key idea of spontaneous order to characterise the learning society. The argument is illustrated by a practical application: the analysis of natural capital explored in this Special Issue is shown to be directly relevant to the improvement of the UK’s headline sustainability indicators package.     

COUNTERMEASURES TO IMPROVE THE DRIVING PERFORMANCE OF OLDER DRIVERS

A 2‐year study of the problems of older drivers (N = 105) was conducted by a team of researchers from the disciplines of traffic engineering, gerontology, physical therapy, occupational therapy, and driver education. The objective of the research was to develop and evaluate countermeasures to improve the safety of older drivers. During the first year, the problems of older drivers were examined and the following countermeasures designed: (a) physical therapy, (b) perceptual therapy, (c) driver education, and (d) traffic engineering improvements. In the second year, the effects of these countermeasures on the driving performance of older drivers were evaluated. All of the countermeasures improved the older adults’ performance. Combining driver education with physical or perceptual therapy tended to increase the improvement in driving performance, but none of the increases were statistically significant (s > .015). The countermeasures provided an average improvement in driving performance of 7.9%. Analysis indicated that traffic engineering improvements would be most cost‐effective on high‐volume roadways and the other countermeasures would be most cost‐effective on low‐volume roadways.     

High school students’ implicit theories of what facilitates science learning

Background: Research has primarily concentrated on adults’ implicit theories about high quality science education for all students. Little work has considered the students’ perspective. This study investigated high school students’ implicit theories about what helped them learn science.

Purpose: This study addressed (1) What characterizes high school students’ implicit theories of what facilitates their learning of science?; (2) With respect to students’ self-classifications as African American or European American and female or male, do differences exist in the students’ implicit theories?

Sample, design and methods: Students in an urban high school located in south-eastern United States were surveyed in 2006 about their thoughts on what helps them learn science. To confirm or disconfirm any differences, data from two different samples were analyzed. Responses of 112 African American and 118 European American students and responses from 297 European American students comprised the data for sample one and two, respectively.

Results: Seven categories emerged from the deductive and inductive analyses of data: personal responsibility, learning arrangements, interest and knowledge, communication, student mastery, environmental responsiveness, and instructional strategies. Instructional strategies captured 82% and 80% of the data from sample one and two, respectively; consequently, this category was further subjected to Mann-Whitney statistical analysis at p < .05 to ascertain ethnic differences. Significant differences did not exist for ethnicity but differences between females and males in sample one and sample two emerged.

Conclusions: African American and European American students’ implicit theories about instructional strategies that facilitated their science learning did not significantly differ but female and male students’ implicit theories about instructional strategies that helped them learn science significantly differed. Because students attend and respond to what they think and perceive to be important, addressing students’ implicit theories may be one way to enhance science education reform.