Achievement in Science as a Function of the Mobility—Fixity Dimension

The characteristic of field‐independent subjects to function consistently in a field‐independent fashion (i.e. fixity) and of others to vary more according to circumstances (i.e. mobility) has been referred to as the Mobility‐Fixity Dimension. This dimension, based on the theories of Werner, Witkin and Pascual‐Leone suggests, that field mobile students perform better than fixed students in science courses. The main objective of this study, based on high school students (mean age = 16.5 years; SD = 1.0) in Venezuela, was to test the following predictions. (1) Mobile students would obtain a better performance than fixed students on variables such as introductory high school mathematics, physics, chemistry, biology and earth science courses; and (2) among mobile students, those classified in the middle‐high range of the Group Embedded Figures Test (GEFT) and the Figural Intersection Test (FIT), would obtain a better performance as compared to those in the lower‐middle range. Results obtained, in general, provide support for the first prediction. The differences between the performances of mobile and fixed groups were, however, significant (p < 0.05) only for the biology and earth science courses. Students in one of the high mobility groups obtained a better performance (in all courses) than not only the corresponding low mobility group but also a fixed group with high scores on both the GEFT and FIT, which provides support for the second prediction. It is concluded that problem‐solving ability in science courses may be strengthened through the mediation of the Mobility‐Fixity Dimension.     

Latino Airwaves: Radio Bilingüe and Spanish-Language Public Radio

This article focuses on Radio Bilingüe, a community driven Spanish-language public radio station that serves the information and entertainment needs of one of the most disenfranchised Latino communities across local, national, and transnational borders. The author discusses its establishment as a result of the formation of CPB’s Task Force on Minorities and explains the role Radio Bilingüe plays in helping elevate minority voices in public broadcasting. This case illustrates how a Latino owned and operated radio enterprise empowers traditionally underrepresented Latino communities by providing them a space where they can be heard and represented in culturally sensitive ways.     

Search behavior in cats and dogs: Interspecific differences in working memory and spatial cognition

Cats’ and dogs’ search behavior was compared in different problems where an object was visibly moved behind a screen that was then visibly moved to a new position. In Experiments 1 (cats) and 2 (dogs), one group was tested with identical screens and the other group was tested with dissimilar screens. Results showed that in both species, search behavior was based on processing of spatial information rather than on recognition of the visual features of the target screen. Cats and dogs were unable to find the object by inferring its invisible movement. They reached a high level of success only if there was direct perceptual evidence that the object could not be at its initial position. When the position change was indicated by an indirect cue, cats searched more at the object’s initial than final position, whereas dogs searched equally at both positions. Interspecific similarities and differences are interpreted in terms of the requirements for resetting working memory.     

Contract cheating in Australian higher education: a comparison of non-university higher education providers and universities

Abstract

This article reports on one aspect of a nationally funded research project on contract cheating in Australian higher education. The project explored students' and educators’ experiences of contract cheating, and the contextual factors that may influence it. This article reports the key findings from non-university higher education providers (NUHEPs). It compares survey responses from 961 students and 91 educators at four NUHEPs with previously reported findings from eight universities (14,086 students and 1,147 staff). NUHEP and university students report engaging in contract cheating in similar ways. However, while NUHEP educators spend more time teaching academic literacies and discussing contract cheating, NUHEP students are 12 times more likely than university students to report use of a professional academic writing service. Both NUHEP and university educators require systematic professional development regarding the relationship between the teaching and learning environment and students’ contract cheating behaviour. NUHEPs need to be cognisant of students’ vulnerability to commercial contract cheating services, and ensure they have access to timely academic and social support.     

Perceived ability and success: which self-efficacy measures matter? A distance learning perspective

This paper sought to determine the effects of three self-efficacy measures on the academic attainment of students who were enrolled for the first time at the University of South Africa (Unisa) in 2015. The measures of interest were self-regulated learning efficacy, distance learning self-efficacy and computer and online technologies self-efficacy. Overall, only DLSE was found to have a significant effect on academic attainment albeit with a low effect (r = ?.13), explaining only 1.7% of the variation in the academic achievement between successful and unsuccessful students. DLSE also explained 10% of the variation in academic achievement between successful and unsuccessful students who, although new to Unisa, were not new to higher education.     

Mathematical Modelling: the Interaction of Culture and Practice

Using a sociocultural approach we analyse the results of a Mexican/British project which investigated the ways in which mathematics is used in the practice of school science and the role of spreadsheets as a mathematical modelling tool. After discussing the different school cultures experienced by two groups of pre-university 16–18 year old students we analyse how these different cultures influenced their practice of mathematics, as well as their work with mathematical spreadsheet modelling activities. There were clear differences between the two groups of students in their preference for external representations, in their understanding of the kind of answers they were expected to produce and in the way they conceived the role of mathematics in the practice of science. Although students preferences for a particular representation were not significantly modified by the use of a spreadsheet as a modelling resource, at the end of the study the students recognised the value of using a more diverse set of representations. The results obtained suggest the possibility of enhancing students' capability to shift between a wider range of representations, including graphical, algebraic and numeric ones, using a modelling approach embedded in a computer environment such as a spreadsheet. This revised version was published online in July 2006 with corrections to the Cover Date.     

Representations of sibling relationships in young children’s literature

Children’s conceptions of what sibling relationships can be like may be influenced, in part, by the literature they read. This study examined the degree to which positive and negative dimensions of sibling relationships were portrayed in a sample of children’s books (n = 261). We also investigated how mothers and fathers were depicted when responding to sibling conflict. Results indicated that although children’s books often represent warmth and involvement between siblings, they rarely described children engaging in conflict management or relational maintenance activities. Parents were predominantly portrayed as responding to children’s conflict using controlling methods rather than techniques that might foster negotiation and problem solving. Characters who were middle children are under-represented in children’s literature. Results are discussed in terms of how educators can select, use, and adapt books in their efforts to help strengthen children’s sibling relationships.