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排序方式: 共有642条查询结果,搜索用时 15 毫秒
81.
开发区是我国改革开放进程中重要的"制度安排",在制度转型、市场机制培育、产业结构升级和带动地区经济增长等方面发挥着引领示范作用,但同时也存在政策效应边际递减、土地资源浪费、创新不足等诸多问题.梳理我国开发区过去三十多年的发展经验和不足,并展望其未来定位是一项重要的研究课题.在详细讨论我国开发区的缘起、动力机制、发展阶段、功能演变、面临问题的基础上,文章从制度安排、比较优势、产业集聚和商业环境四个方面总结了我国开发区取得的成功经验.未来,开发区的发展应实现从生产到生活、从效率到公平、从地的繁荣到人的繁荣、从外围到中心、从专业化到多样化、从高速增长到高质量发展、从对外开放到国内国际双循环等方面的转变. 相似文献
82.
Carolyn S. Henry Todd A. Spencer Chao Liu Scott W. Plunkett 《Marriage & Family Review》2020,56(2):174-191
AbstractBased on the value of children theory, the purpose of this study was to develop and establish the factor structure and internal consistency reliability of the Advantages of Children Scale (ACS), a self-report measure of a modification of Hoffman and Hoffman’s value scheme of the psychological needs children meet for their parents. Data were collected from 685 emerging adult men identifying as Latino or Caucasian who were not parents. Results of the confirmatory factor analysis found a good fit for the six hypothesized subscales on the ACS: connectedness, expansion of self, family heritage, adult status and social identity, development of self, and family maintenance. We discuss potential applications of the measure in research and practice. 相似文献
83.
ABSTRACTWeb surveys are an established data collection mode that use written language to provide information. The written language is accompanied by visual elements, such as presentation formats and shapes. However, research has shown that visual elements influence response behavior because respondents sometimes use interpretive heuristics to make sense of the visual elements. One such heuristic is the ‘left and top means first’ (LTMF) heuristic, which suggests that respondents tend to believe that a response scale consistently runs from left to right or from top to bottom. We conducted a web survey experiment to investigate how violations of the LTMF heuristic affect response behavior and data quality. For this purpose, a random half of respondents received response options that followed a consistent order and the other half received response options that followed an inconsistent order. The results reveal significantly different response distributions between the two groups. We also found that inconsistently ordered response options significantly increase response times and decrease data quality in terms of criterion validity. We, therefore, recommend using options that follow the design strategies of the LTMF heuristic. 相似文献
84.
中小微企业的发展不管是对就业、创新,还是对经济发展都非常重要,但中小微企业的健康发展也需要政府财税政策的支持。以员工增长率、总资产增长率、销售收入增长率、息税前利润率等四项指标作为财税政策支持中小微企业发展效果的检验变量,以绍兴市的中小微企业为观测样本,通过非参数检验方法论证并证实了不同组别四个检验变量的分布存在显著差异,说明财税政策有效地促进中小微企业发展。 相似文献
85.
边玉芳 《浙江大学学报(人文社会科学版)》1999,29(3):69-73
教育问卷调查法是一种教育研究的常用方法。但该方法在使用过程中往往存在着一些问题 ,影响了问卷调查法的科学性。本文认为重视问卷设计中的理论构思 ,使问卷的量化过程符合测理学原理 ,并对问卷进行信度和效度的考证 ,将有助于提高问卷调查法的科学性 相似文献
86.
王少俊 《北京化工大学学报(社会科学版)》2014,(4):10-16
中国政治宪法学是中国宪法学的一个理论流派,它的特点是从政治的角度出发研究宪法。中国政治宪法学的提出表面上看是因为宪法规范有效性不足,背后实质隐藏着某种"事实"与"价值"之争。在中国政治宪法学理论的建构中,国外的"宪法政治"与"政治法学"两大理论已经成为其主要依托的理论资源。因此,对中国政治宪法学进行理论上的溯源,不仅能加深我们对中国政治宪法学的理解,也使我们认识到它所具有的价值。 相似文献
87.
Stephen T. Ziliak 《The American statistician》2019,73(1):281-290
AbstractA crisis of validity has emerged from three related crises of science, that is, the crises of statistical significance and complete randomization, of replication, and of reproducibility. Guinnessometrics takes commonplace assumptions and methods of statistical science and stands them on their head, from little p-values to unstructured Big Data. Guinnessometrics focuses instead on the substantive significance which emerges from a small series of independent and economical yet balanced and repeated experiments. Originally developed and market-tested by William S. Gosset aka “Student” in his job as Head Experimental Brewer at the Guinness Brewery in Dublin, Gosset’s economic and common sense approach to statistical inference and scientific method has been unwisely neglected. In many areas of science and life, the 10 principles of Guinnessometrics or G-values outlined here can help. Other things equal, the larger the G-values, the better the science and judgment. By now a colleague, neighbor, or YouTube junkie has probably shown you one of those wacky psychology experiments in a video involving a gorilla, and testing the limits of human cognition. In one video, a person wearing a gorilla suit suddenly appears on the scene among humans, who are themselves engaged in some ordinary, mundane activity such as passing a basketball. The funny thing is, prankster researchers have discovered, when observers are asked to think about the mundane activity (such as by counting the number of observed passes of a basketball), the unexpected gorilla is frequently unseen (for discussion see Kahneman 2011). The gorilla is invisible. People don’t see it. 相似文献
88.
本文利用2008年“中国流动与健康调查”(IMHC)数据,分析了自评一般健康指标的信度和效度。研究发现,自评一般健康具有较好的信度,被访者先后两次回答的结果高度一致,两次回答结果的微小变动表现为随机性的波动,而非系统性偏差。该指标在一定程度上会受到调查中题目次序效应的影响。关于自评一般健康指标效度的分析发现,该指标能够有效反映被访者自我感知的各种健康状态和个体既有的关于自身健康的知识,但不能很好地反映个体无法感知的机体变化等健康问题。自评一般健康存在较为复杂的回答偏误问题,受不同年龄、社会经济地位群体关于健康的评价标准、期望与认知差异的影响,其回答结果在不同人群中的可比性值得商榷。 相似文献
89.
旨在研究数据包络方法评价企业绩效的有效性。首先从理论上提出了四个假设,其次选取了2012年中国803家制造业上市公司作为样本数据,对四个假设从绝对有效性和相对有效性两个方面进行了实证检验。最后得出结论:数据包络方法测算的企业效率值与传统绩效评价指标显著正相关,而且在不同的效率水平上、不同地区、不同行业,该效率值作为评价企业绩效的指标既是绝对有效的,也是相对有效的。 相似文献
90.
《Journal of homosexuality》2012,59(8):1022-1038
The present study compared effects of erotic and non-erotic depictions of male-male intimacy on the experience of anger in heterosexual men. Data came from three independent laboratory studies designed to elicit anger in response to erotic or non-erotic depictions of male-male and male-female intimacy. All participants completed a measure of sexual prejudice and anger was assessed before and after viewing the erotic or non-erotic video. Among high-prejudiced men, viewing erotic and non-erotic intimate behavior between two men elicited significant increases in anger relative to viewing comparable behavior between a male-female dyad. In contrast, among low-prejudiced men, viewing erotic, but not non-erotic, intimate behavior between two men elicited significant increases in anger relative to viewing comparable behavior between a male-female dyad. Implications for understanding heterosexual men's anger, and aggression, toward gay men were discussed. 相似文献