首先,longitudinalstudy是一种观察性研究,其设计目的是追踪同一组人或个体在一段时间内的变化和发展。这种研究设计可以帮助我们理解变量随时间的演变情况,以及变量之间的因果关系。相比之下,cross-sectional study则是在某个特定时间点上,对不同群体或不同个体进行数据收集和分析。 其次,在数据收集方面,longitudinal study...
cross-sectional and longitudinal epidemiological 选择语言:从中文简体中文翻译英语日语韩语俄语德语法语阿拉伯文西班牙语葡萄牙语意大利语荷兰语瑞典语希腊语捷克语丹麦语匈牙利语希伯来语波斯语挪威语乌尔都语罗马尼亚语土耳其语波兰语到中文简体中文翻译英语日语韩语俄语德语法语阿拉伯文西班牙语葡萄牙语意大利语荷兰语瑞典语希腊...
1.什么是横向( cross- sectional)研究和纵向( longitudinal)研究?这两类研究的无缺点各是什么?请从自己的研究兴趣出发,设计一个横向研究和纵
Results bone structures in fretting areas become loose and obvious cracks could be found in both longitudinal and cross -sectional planes of the bone.───结论:得到了包含横断面和纵向的大量绝经期妇女内分泌变化的资料。 We aimed to investigate the effect of body weight on the risk of colorectal ...
5) longitudinal deformation 纵向变形 1. Study on effect of construction loads on longitudinal deformation of adjacent metro tunnels; 地面新施工荷载对临近地铁隧道纵向变形的影响分析研究 2. Through the mechanical analysis, the differential equation for the longitudinal deformation of cold forming steel ...
P. (1995). Cross-sectional and longitudinal examination of attachment, separation-individuation, and college student adjustment. Journal of Counseling and Development, 73, 463- 475.Rice, K. G., Fitzgerald, D. P., Whaley, T. J., & Gibbs, C. L. (1995). Cross-sectional and longitudinal ...
简答|横向cross-sectional研究和纵向longitudinal研究 56101:53 简答|从方法及应用的角度,简述内容分析和文本分析的区别 43303:33 第十三章要点|撰写研究报告 32702:07 第十二章要点|定性资料分析 31702:21 第十一章要点|定量资料分析 36203:19 第十章要点|实地研究 34803:20 第九章要点|文献研究 26302:11 第八章...
We aimed to further characterize the cross-sectional and longitudinal relationship between Aβ deposition, gray matter atrophy, and cognitive impairment. Objective To investigate the topographical relationship of Aβ deposition, gray matter atrophy, and memory impairment in asymptomatic individuals with ...
Moreover, a subset of the cohort returned for repeat cognitive assessment between two and seven years post-baseline, thus permitting both cross-sectional and longitudinal analyses. This is the largest study to date of air pollution and cognitive test performance, with standardised measurement of ...
所属专辑:2022新传1(传播学理论名解) 音频列表 1 15.23 横向(cross-sectional)研究和纵向(longitudinal)研究 59 2021-06 2 15.22 双盲实验(double-blind experients) 38 2021-06 3 15.21 实验研究法 18 2021-06 4 15.20 控制实验 43 2021-06 5