Measuring knowledge of natural selection: A comparison of the CINS,an open‐response instrument,and an oral interview

Growing recognition of the central importance of fostering an in‐depth understanding of natural selection has, surprisingly, failed to stimulate work on the development and rigorous evaluation of instruments that measure knowledge of it. We used three different methodological tools, the Conceptual Inventory of Natural Selection (CINS), a modified version of Bishop and Anderson's (Bishop and Anderson [1990] Journal of Research in Science Teaching 27: 415–427) open‐response test that we call the Open Response Instrument (ORI), and an oral interview derived from both instruments, to measure biology majors' understanding of and alternative conceptions about natural selection. We explored how these instruments differentially inform science educators about the knowledge and alternative conceptions their students harbor. Overall, both the CINS and ORI provided excellent replacements for the time‐consuming process of oral interviews and produced comparable measures of key concept diversity and, to a lesser extent, key concept frequency. In contrast, the ORI and CINS produced significantly different measures of both alternative conception diversity and frequency, with the ORI results completely concordant with oral interview results. Our study indicated that revisions of both the CINS and ORI are necessary because of numerous instrument items characterized by low discriminability, high and/or overlapping difficulty, and mismatches with the sample. While our results revealed that both instruments are valid and generally reliable measures of knowledge and alternative conceptions about natural selection, a test combining particular components of both instruments—a modified version of the CINS to test for key concepts, and a modified version of the ORI to assess student alternative conceptions—should be used until a more approprite instrument is developed and rigorously evaluated. © 2008 Wiley Periodicals, Inc. J Res Sci Teach 45: 1131–1160, 2008     

The evolution of FM radio: 1941–1946

The following verbatim extracts from FCC Annual, Reports are part of a continuing series published in the Journal of Broadcasting that includes: “The Evolution of Television: 1927–1943” (Summer, 1960); “The Evolution of Television: 1944–1948” (Winter, 1960–61); and “The Evolution of FM Radio: 1935–1940” (Spring, 1961).     

Seeing Ourselves as Others See Us: Egyptian teachers’ views of science education in secondary schools in London,UK

Small differences in working patterns and social relationships can be indicators of deeper cultural differences. It is these non‐educational issues which point to the serious difficulty of making cross‐cultural comparisons. Data collected from Egyptian science teachers who have visited science classes in London are reported here. UK teachers may be habituated, or unaware of features of school life that are quite striking to the Egyptians as new observers. These include well resourced laboratories, considerable practical work done in small groups and a wide variety of classroom activities. However, it is the professionalism and the good interpersonal relationships that they see in the UK that the Egyptian teachers come to appreciate even more on their return to Egypt. Such a feature of UK teachers’ work cannot be identified by international test score comparisons.     

Cooperative learning that features a culturally appropriate pedagogy

Many recent intercultural studies have shown that people cooperate with each other differently across cultures. We argue that cooperative learning (CL), an educational method originating in the USA and with fundamental psychological assumptions based on Western values, should be adjusted to be culturally appropriate for any non‐Western cultures in which it is applied. In the light of this assertion, this paper reports a series of experiments conducted in Vietnamese upper‐secondary schools. One group was provided with a series of lessons designed according to mainstream CL practice. Another group was provided with similar lessons but these were modified so as to be more culturally appropriate in terms of leadership, reward allocation and group composition. Findings show that (1) the role and the type of leadership, although not a key element of mainstream CL theories and practice, proved to be influential; (2) groupings based upon existing friendships, rather than upon cognitive ability, appeared to be important. A key finding was that the group receiving a culturally modified programme appeared to work harder during, and gain more satisfaction from, collaborative learning activities.     

The Cognitive and Behavioral Characteristics of Children With Low Working Memory

This study explored the cognitive and behavioral profiles of children with working memory impairments. In an initial screening of 3,189 five- to eleven-year-olds, 308 were identified as having very low working memory scores. Cognitive skills (IQ, vocabulary, reading, and math), classroom behavior, and self-esteem were assessed. The majority of the children struggled in the learning measures and verbal ability. They also obtained atypically high ratings of cognitive problems/inattentive symptoms and were judged to have short attention spans, high levels of distractibility, problems in monitoring the quality of their work, and difficulties in generating new solutions to problems. These data provide rich new information on the cognitive and behavioral profiles that characterize children with low working memory.     

Exploring ‘learning lives’: community,identity, literacy and meaning

This article explores the term ‘learning lives’ by reporting on three research projects conducted by members of the Oslo‐based research group TransActions. By stressing the term ‘learning lives’ within a range of social ‘educational’ contexts, the article aims to look at learning within and across different learning sites exploring the positioning and repositioning of learner identity across these different ‘locations’. We emphasise how the individual learner relates to other people and objects, drawing on deeper trajectories or narratives of the self as it exists within and outside the immediate learning contexts. We pay attention to processes occurring between people which we find significant for the individual's identity, literacy and learning. By doing so we hope to make explicit the mobilisation of resources within and across specific contexts, in the ‘learning lives’ of Norwegian youngsters.