The Impact of APA and AERA Guidelines on Effect Size Reporting

Given the long history of effect size (ES) indices (Olejnik and Algina Contemporary Educational Psychology, 25, 241–286 2000) and various attempts by APA and AERA to encourage the reporting and interpretation of ES to supplement findings from inferential statistical analyses, it is essential to document the impact of APA and AERA standards on ES reporting practices. In this paper, we investigated the impact by examining findings from 31 published reviews and our own review of 451 articles published in 2009 and 2010. The 32 reviews were divided into two periods: before and after 1999. A total of 116 journals were reviewed. Findings from these 32 reviews revealed that since 1999, the ES reporting has improved in terms of its rate, variety, interpretation, confidence intervals, and fullness. Yet several inadequate practices still persisted: (1) the dominance of Cohen’s d, and the unadjusted R ²/η², (2) the mere labeling of ES, (3) the under-reporting of confidence intervals, and (4) a lack of integration between ES and statistical tests. The paper concludes with resources on Internet and recommendations for improving ES reporting practices.     

首都体育科技发展的现状研究

体育既是国民经济与社会发展的重要内容,又是反映现代社会文明和城市发展的重要指标。北京作为中国首都和构建和谐社会的首善之区,在其率先实现现代化的目标中也必然包括体育科技现代化的内容,而2008年的奥运会无疑又为推动首都体育科技现代化提供了宝贵的时代契机。为此,论文通过文献资料、特尔菲法、访谈等研究方法,运用翔实的数据描述了首都体育科技的发展现状,并据此提出了相应的发展策略。     

运动处方对中学生心理健康影响效应的实验研究

通过实验研究,证明运动处方的实施对中学生心理健康有较大的改善,其调控主要集中在“人际关系”、“抑郁”、“焦虑”、“偏执”、“强迫”五因个子上。为今后利用运动处方科学地对中学生进行强身和健心和为国家体推行全民健身计划提供理论和实践指导方面的依据。     

我国高校体育课程建设与人才培养

采用文献综述和分析法,概述了高校体育课程建设的指导思想,揭示了高校体育实施素质教育和健康教育与人才培养的基本观点,并针对高校体育教育的内容、考核评价及师资队伍建设等几方面重要环节,提出了高校体育课程建设的改革对策.     

Extraction and isolation of the salidroside-type metabolite from zinc (Zn) and cadmium (Cd) hyperaccumulator Sedum alfredii Hance

The active metabolite in the post-harvested biomass of zinc(Zn) and cadmium(Cd) hyperaccumulator Sedum alfredii Hance from phytoextraction is of great interest in China.The current study demonstrates that a salidroside-type metabolite can be yielded from the Zn/Cd hyperaccumulator S.alfredii biomass by means of sonication/ethanol extraction and macroporous resin column(AB-8 type) isolation.The concentrations of Zn and Cd in the salidroside-type metabolite were below the limitation of the national standards.     

PBL教学模式在烟草专业教学中的应用研究

PBL教学模式在医学类专业教学中已经取得了显著成绩。本研究以烟草专业教学为例探讨PBL在农学类专业教学中的效果。结果表明,PBL教学模式显著地提升了学生的知识掌握程度,并且提高了学生的求知欲,活跃了课堂气氛,开阔了视野,锻炼了学生们团队合作和PPT制作能力。理论联系实际的核心理念促使PBL教学模式将在农学类专业教学过程中发挥出更大的作用。     

艺术与梦的比较研究

意识与潜意识有三种相同的反映现实生活的方式:主观虔诚方式、自由思考方式和感性观照方式。艺术和梦虽然一属意识,一属潜意识,但都是人类以感性观照方式反映现实生活的精神产品。因此,二者有很多相同的特性,这表现在生活源泉、形象塑造、反映生活的方式等诸多方面。对艺术与梦进行比较研究,不仅能够通过艺术了解梦,也能够通过梦了解艺术,从而做到学科互补,在理论研究中良性互动、相得益彰。     

概率最值问题例析

1掷骰子中的最值问题例1掷骰子500次时,问1点出现几次的概率最大?解：设P为在500次试验中有r次出现1点的概率,则P_r=C_(500)~r(1/6)r(5/6)~(500-r)．讨论P_(r 1)与P_r的比(P_(r 1))/P_r=     

世界优秀男篮的进攻类型

采用主成分分析法对雅典28届奥运会篮球赛12支队伍进攻指标进行分析,结果表明世界男篮强队的进攻战术主要采用2种进攻类型,即内外结合型和内线为主结合转换型。     

多媒体技术对轮滑教学效果影响的实验研究

通过轮滑技术教学实验的研究发现，多媒体对于丰富轮滑授课内容、增加教学手段、提高学生兴趣、培养学生自学能力有着积极的促进作用，应在轮滑教学中推广和普及。