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祝建华 :本文采用跨文化比较以及兼用定性和定量方法来研究新闻传播学中最基本的理论问题 ,实为近年来少见的力作。陈力丹 :现任《传播学研究》杂志 (CommunicationResearch)两主编之一的休梅克 ,几年前访问过我国。她领导的研究小组最近对世界不同地区的 1 0个代表性国家 (包括中国 )的媒体进行了跨文化比较研究 ,从新闻理念入手 ,给人相当多的思考。本期发表的是她研究报告的一部分。     

Teacher-student discourse in active learning lectures: case studies from undergraduate physics

In this paper we develop knowledge of the discourse that takes place between teacher and students in two large undergraduate classes which use a flipped, active learning approach. In flipped classes students encounter the content through pre-class resources, freeing up class time for more active engagement with the material. This results in increased opportunities for teacher-student interactions which may be beneficial for learning. Our aim here is to explore the nature and purposes of these dialogues. Two case studies from introductory physics classes at the University of Edinburgh are analysed through a sociocultural perspective. Three main purposes of dialogues are observed: (1) Involving students in sense-making, (2) Guided expert modelling and (3) Wonderment questions. We found that the dialogues predominantly use a triadic Initiation, Response, Feedback (IRF) format and are authoritative in nature, but work together to create an interactive learning environment that can be described as ‘ideologically dialogic’     

New evidence of relative age effects in “super-elite” sportsmen: a case for the survival and evolution of the fittest

The relative age effect (RAE) describes an overrepresentation of players born early (Q1) in a selection year and is highly prevalent within youth sport pathways. However, a dearth of research has investigated the RAE at the “super-elite” level. The present research assessed the presence of RAE in super-elite performers. Study 1 investigated RAEs in the world’s best international Test cricketers (N = 262) over a 20-year period according to a robust and stringent “super-elite” criteria. Results revealed the RAE (Q1) when all disciplines were combined. Upon closer examination, this effect was also observed for the batting and spin bowling disciplines, whereas no RAE was found for the pace bowling discipline. Study 2 investigated RAEs in super-elite rugby union players (N = 691) over a 20 year period. Results revealed the RAE for backs (Q1) and a reversal of the traditional RAE (Q4) for forwards, and when all rugby union positions were combined. These findings provide new evidence of RAEs at the super-elite level and present both inter and intra sports differences. Potential explanations for these findings are explored, owing to the survival and evolution of the fittest concepts, and the implications for future research and applied practice are presented.     

Structural validation of three German versions of behavioral and motivational scales in high-risk sports

The aim of the present research was to validate German language versions of three inventories in high-risk sports to facilitate future research in the significant population of German speaking high-risk sports participants. We translated the Sensation Seeking, Emotion Regulation and Agency Scale (SEAS), the Risk-Taking Inventory and the Accidents and Close Calls in Sport Inventory into German, then tested the hypothesized factor structures with 719 high-risk sport participants from the European Alps using Bayesian structural equation modelling (BSEM). The final models were all good fits to the data, had good internal consistency and displayed adequate discriminant validity. All inventories displayed the same factor structure as in the English inventories bar the G?SEAS After inventory in which a three-factor model fitted better than a two-factor model. Possible reasons for this difference include differences in the sample population, translation bias, or cross-cultural differences; however it seems likely that the nuanced approach of BSEM allowed this study to disentangle emotion regulation transfer from agency transfer after participating in high-risk sport where previous attempts using other methods have failed to. This will allow future research in high-risk sport to be conducted beyond English speaking populations and more significantly, facilitate the investigation of differences between the transfer effects of agency and emotion regulation.