Teacher–student interaction in contemporary science classrooms: is participation still a question of gender?†

We show that boys still have a greater access to the space for interaction in science classrooms, which is unexpected since in Sweden today girls perform better in these subjects than boys. Results from video-recorded verbal communication, referred to here as interaction, show that the distribution of teacher–student interaction in the final year of lower secondary school follows the same patterns as in the 1980s. The interaction space for all kinds of talk continues to be distributed according to the two-thirds rule for communication in science classrooms as described by previous research. We also show that the overall interaction space in science classrooms has increased for both boys and girls when talk about science alone is considered. Another finding which follows old patterns is that male teachers still address boys more often than girls. This holds true both for general talk and for talk about science. If a more even distribution of teacher–student interaction is desirable, these results once again need to be considered. More research needs to be undertaken before the association between girls’ attitudes and interest in science in terms of future career choice and the opportunity to participate in teacher–student interaction is more clearly understood.     

Exploring the Usefulness of Kelly's Personal Construct Theory in Assessing Student Learning in Science Courses

We explore the utility of George Kelly's Personal Construct Theory, specifically his repertory grid technique, to the assessment of student learning in undergraduate science courses. We provide an in-depth review of the assumptions underlying Personal Construct Theory and how these were reflected in the repertory grid technique Kelly developed. We explain how an adapted version of the repertory grid, sharing some yet not all of Kelly's assumptions, was utilised as a research tool in a recent study involving science instructors and their students. We argue that as well as having applicability as an innovative research tool, an adapted version of Kelly's repertory grid is a useful heuristic for university teachers when used as a classroom assessment technique (CAT) and indicate several features it shares with the more widely-known conceptual mapping technique, which has been used in the study of science teaching and learning for many years. We conclude by highlighting several advantages the use of repertory grids has for both students and instructors.     

Computer-assisted remedial reading intervention for school beginners at risk for reading disability

The aim of the longitudinal study was to investigate whether a computer application designed for remedial reading training can enhance letter knowledge, reading accuracy, fluency, and spelling of at-risk children. The participants, 7-year-old Finnish school beginners (N=166), were assigned to 1 of 3 groups: (a) regular remedial reading intervention (n=25), (b) computer-assessed reading intervention (n=25), and (c) mainstream reading instruction (n=116). Based on the results, computer-assisted remedial reading intervention was highly beneficial, whereas regular type of intervention was less successful. The results indicated that at-risk children require computer-based letter-name and letter-sound training to acquire adequate decoding and spelling skills, and to reach the level of their non-at-risk peers.     

Praxisleitfaden zur Betreuung von Diplomarbeiten

Die vorliegende Arbeit beschreibt erfolgskritische Faktoren des bei der Erstellung von Diplomarbeiten zwischen Studenten und Gutachter bestehenden Betreuungsverh?ltnisses und soll praktische Hinweise zu dessen Optimierung liefern.     

低碳发展方案编制指南(第三部分)——制定低碳发展规划

本节介绍制定低碳发展计划常用的核心步骤。本指南侧重城市层面;同样的步骤也适用于企业、市、省和国家等层级。中国自"十一五规划"起,对改善国内能源强度定出目标,包括各经济部门的节能目标。2009年12月中国政府公布了其碳强度目标,重点放在单位GDP用能引发的二氧化碳排放量。为实现该强度目标以及"循环经济"等经济性目标,制定低碳发展规划尤其必要。     

Administrative and structural changes in student evaluations of teaching and their effects on overall instructor scores

Using nine years of student evaluation of teaching (SET) data from a large US research university, we examine whether changes to the SET instrument have a substantial impact on overall instructor scores. Our study exploits four distinct natural experiments that arose when the SET instrument was changed. To maximise power, we compare the same course/instructor before and after each of the four changes occurred. We find that switching from in-class, paper course evaluations to online evaluations generates an average change of ?0.14 points on a five-point scale, or 0.25 standard deviations (SDs) in the overall instructor ratings. Changing labelling of the scale and the wording of the overall instructor question generates another decrease in the average rating: ?0.15 of a point (0.27 SDs). In contrast, extending the evaluation period to include the final examination and offering an incentive (early grade release) for completing the evaluations do not have a statistically significant effect on the overall instructor rating. The cumulative impact of these individual changes is ?0.29 points (0.52 SDs). This large decrease shows that SET scores are not comparable over time when instruments change. Therefore, administrators should measure and account for such changes when using historical benchmarks for evaluative purposes (e.g. appointments and compensation).