共查询到19条相似文献，搜索用时 250 毫秒
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论文的统计学质量是学术期刊质量控制的重中之重.本文介绍几种常用统计学检验方法的规则,结合案例分析,分享《新医学》在文章统计学质量把关方面的经验:1)t检验和秩和检验中丨t丨或者|Z|若＜1.96,对应的P值必然＞0.05,且在相同样本量的情况下,丨t丨或者|Z|越大,P值越小.2)四格表的卡方检验,x2值若＜3.84,则对应的P值＞0.05;在样本量相同时,x2值越大,P值越小.3)logistic回归分析或Cox生存分析中,自然对数的底(e)的回归系数(B)次方,即exp(B),必须等于Ro或RH值;Ro或RH值的95％CI的下限=exp(B-1.96Es),95％CI 的上限=exp(B+1.96Ea);且 RO或RH 值的95％CI如果包含1,对应的P值必然＞0.05;Ro或RH值的95％CI必然包含Ro或RH值exp(B).编辑人员应掌握基本统计知识,并增强与作者的沟通,刊发文章应有多次统计审稿,并要求作者提供具体的统计值.通过上述规则和经验,希望帮助科技期刊编辑初步筛查可能存在统计结果错误的文章,以避免刊出因统计问题所致的结果造假类学术不端论文. 相似文献
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清代官员考课,文官有京官京察和外官大计,武官有军政,其标准统称为四格八法,考以四格,纠以八法……以四格叙其功劳,以八法行其处分①。就文官考课而言,四格包括操守、才具、政事、年力四个方面。武官考课,清初绿营四格包括操守、才能、功绩、年貌四项,乾隆时期改为才技、年力、驭兵、给饷。八旗四格在乾隆时期确定,即操守、 相似文献
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图表中平均数差异显著性检验结果的规范表达 总被引：2，自引：0，他引：2
科技论文图表中平均数差异显著性检验结果的表达存在很多问题,如图表中不标出检验结果、表达符号多样、符号标注位置不统一、检验结果描述缺项等,以及图表注释中对检验结果的表述不全面,甚至描述有错。通过分析存在的问题,提出了规范表达的建议。 相似文献
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三线表栏目的规范化表示 总被引：2，自引：0，他引：2
针对三线表栏目编排常见问题,以有关国家标准为依据,对其进行科学性及规范性分析,给出了解决三线表栏目编排问题的正确做法.认为科技期刊三线表栏目编排必须科学、规范、简洁、自明. 相似文献
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就CNMARC著录中经常出现的问题进行分析探讨,以求完善CNMARC的编目实践.表2.参考文献3. 相似文献
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正交试验设计表的使用分析 总被引：16，自引：1，他引：16
分析科技论文中正交试验设计方法常用的各种列表(图)以及表中统计量符号表达中存在的问题,诸如列表中常出现正交表名书写错误、表中栏目名称不确切、表格和数据重复或短缺、因素与指标关系图多样化,以及极差分析表中统计量符号的多样化表示、方差分析表中多字母的统计量符号表示等,并对变量符号的规范表示给出了建议. 相似文献
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为了了解我国高等院校进行电子政务研究的现状,以便发现问题,制定相应策略,收集电子政务相关学位论文,并对论文关键词、学科专业、研究机构进行分析。以掌握电子政务的研究热点和研究主题、电子政务研究的学科分布以及各学科的研究热点、电子政务研究的机构分布以及各学科的核心研究机构进行分析。通过分析发现,高等院校进行电子政务研究的数量和范围都在不断扩展,但也存在着研究热点相对集中、学科专业优势不突出等问题。 相似文献
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Qian Xu Mike Schmierbach Saraswathi Bellur Erin Ash Anne Oeldorf-Hirsch Andrew Kegerise 《Mass Communication and Society》2013,16(3):432-453
Research suggests that individuals use cues about the popularity of a cause or group to make judgments. This bandwagon phenomenon has found particular support in online contexts. However, perceptions regarding the group may also depend on the identity of those supporters. We employed a 2 × 2 × 2 experiment to test the effect of number of affiliates and affiliate race and age on feelings toward the group, its page, and intended support. Results suggest that feelings are not subject to a consistent bandwagon effect but rather are moderated by race, with White participants exhibiting more positive feelings when seeing a page with few Black affiliates or many White affiliates. This result contrasts with findings for age, which serves to moderate only intended page use. 相似文献
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In an experimental study conducted in Switzerland the effects of newscasters' gender and age on credibility were analyzed using a 2 × 2 × 2 factorial design. Participants (N = 160) evaluated Swiss, German, and Austrian TV news items in terms of credibility of the newscaster and credibility of the message. News items read by female newscasters were perceived as being more credible. In contrast, male newscasters were considered to be more credible persons. Furthermore, a significant interaction between the newscasters' gender and age was observed: Age had no effect on the credibility of the younger newscasters, whereas older male newscasters were perceived as being the most credible. 相似文献
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以网络计量学领域的网站链接数为基础,研究网址入链分布规律。首先,通过研究中网站之间的链接关系,选定入链数作为研究对象,并获取原始数据;接着,利用最小二乘法、K-S检验算法以及M.L. Pao教授提出的指数不为2时的逼近c值的估计公式对数据进行洛特卡定律拟合,发现网络计量学领域的网址入链分布并不服从洛特卡定律。最后,讨论造成不服从洛特卡定律的原因。 相似文献
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Saleem Alhabash Anna R. McAlister Elizabeth Taylor Quilliam Jef I. Richards Chen Lou 《Mass Communication and Society》2013,16(3):350-375
This study investigates the effects of social media marketing of alcoholic beverages using a 2 (likes: low vs. high) × 2 (shares: low vs. high) × 3 (display ad type: alcohol ad vs. antibinge drinking PSA vs. local bank) × 6 (status update repetitions) experimental design. The study examines how evaluations of alcohol marketing status updates and display advertisements predict social media users’ intentions to consume alcohol, as a function of message virality and display ad type. Participants’ viral behavioral intentions (intentions to like, share, and comment on) for status updates were strongest in predicting intentions to consume alcohol, and this relationship was strongest when the Facebook status update had high likes and shares. The article argues that alcohol marketing on social media reflects a social norm of alcohol consumption, which leads users to consume more alcoholic drinks. Findings are discussed within the framework of persuasion theories and policy changes regarding regulation of alcohol marketing on social media. 相似文献
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Zhuowen Dong 《亚洲交流杂志》2015,25(1):84-101
This study tested the utility of the Elaboration Likelihood Model (ELM) in creating effective public service announcements (PSAs) of nutrition label use. Students (N = 169) from a secondary school in Hong Kong participated in a 2 × 2 × 3 (health consciousness: high vs. low × argument: informational vs. testimonial × source: expert vs. celebrity vs. ordinary person) factorial design experiment. Hypotheses were partially supported. Main effect was located for health consciousness. Adolescents with high health consciousness were more persuaded by the PSAs. There was an interaction effect between health consciousness and source. A dietitian as the source was most persuasive to people with high health consciousness, while low health conscious people were most influenced by a celebrity. The information processing route was biased by the match of argument and source. Informative argument made by an ordinary person was more likely to motivate adolescents to use nutrition label, while testimonial argument made by a celebrity was the most effective. The findings are discussed in light of ELM hypotheses. Recommendations are also offered for public health communication campaigns. 相似文献
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《Journalism Practice》2013,7(3):418-432
One of the longest-running ethical debates in visual journalism is the extent to which graphic and/or violent photographs should be present in our news media. The current research is designed to elicit further understanding about this complex topic from a framing effects perspective. The research uses a 2 (level of graphicness) × 3 (story topic) experimental design to test for media effects of graphic photos in regard to such variables as attitude toward the situation and attitude toward continued US involvement in the situation. The three story topics are the 2011 Somalia famine, the 2010 Haiti earthquake, and the 2003 war in Iraq. In addition, the research integrates eye-tracking data—a unique approach to understanding the effects of graphic photographs on participants. The research did not find across the board significant effects in regard to level of graphicness; however, a key finding emerged: the nature of the news story did lead to significant effects. In addition, the inclusion of eye-tracking data showed that the highly graphic photos more quickly attracted participants' attention and that participants' fixated on highly graphic photos for a longer amount of time. 相似文献