Social learning in new Caledonian crows

New Caledonian (NC) crows are the most sophisticated tool manufacturers other than humans. The diversification and geographical distribution of their three Pandanus tool designs that differ in complexity, as well as the lack of ecological correlates, suggest that cumulative technological change has taken place. To investigate the possibility that high-fidelity social transmission mediated this putative ratchet-like process, we studied the ontogeny of Pandanus tool manufacture and social organization in free-living NC crows. We found that juvenile crows took more than 1 year to reach adult proficiency in their Pandanus tool skills. Although trial-and-error learning is clearly important, juveniles have ample opportunity to learn about Pandanus tool manufacture by both observing their parents and interacting with artifactual material. The crows’ social system seems likely to promote the faithful social transmission of local tool designs by both favoring the vertical transmission of tool information and minimizing horizontal transmission. We suggest that NC crows develop their Pandanus tool skills in a highly scaffolded learning environment that facilitates the cumulative technological evolution of tool designs.     

An Innovative Approach to Involving Parents in the Education of their Early Years Children

This paper describes and evaluates a project undertaken with parents from an inner city primary school in Hartlepool, UK, devised to help realise children's potential and raise standards. In order to achieve this, it was necessary to create a partnership between parents, school and the child in an environment characterised by the ‘core conditions’ (Rogers, 1957). It was hoped to increase the self‐esteem of the parents and to give them an understanding of the preschool curriculum in order to develop their skills, knowledge and confidence. It was also the intention of the project to involve these, and other parents, in school life and to enable them to take ownership of their own children's education. The multimedia approach involved video, photographs, word processing and press and radio interviews. The process encouraged the fulfilment of the objectives described above. The paper concludes by describing the successful outcomes of the project and indicates some possible developments.     

Evaluating faculty performance under the equal pay for equal work doctrine

The issue of sex discrimination in faculty employment has become a prominent legal and political concern, necessitating the development of objective empirical methods to determine the existence of patterns of discriminatory treatment. In this study, regression techniques are employed to apply the equal pay for equal work interpretation of the fair employment doctrine. Specifically, faculty promotion and salary policies at the University of Texas at Austin are analyzed to determine whether male and female faculty members are rewarded equally for equal academic qualifications and performances. This regression analysis tends to support the discrimination hypothesis with respect to both promotion and salary policies.