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Sample Sizes for Clinical, Laboratory and Epidemiology Studies最新文献

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Therapeutic Exploratory Trials 治疗性探索性试验
Sample Sizes for Clinical, Laboratory and Epidemiology Studies Pub Date : 2018-06-01 DOI: 10.1002/9781118874905.ch17
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引用次数: 0
Index 指数
Sample Sizes for Clinical, Laboratory and Epidemiology Studies Pub Date : 2018-06-01 DOI: 10.1002/9781118874905.index
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引用次数: 0
Paired Binary, Ordered Categorical and Continuous Outcomes 配对二值，有序分类和连续结果
Sample Sizes for Clinical, Laboratory and Epidemiology Studies Pub Date : 2018-06-01 DOI: 10.1002/9781118874905.ch8
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引用次数: 0
The Correlation Coefficient 相关系数
Sample Sizes for Clinical, Laboratory and Epidemiology Studies Pub Date : 2018-06-01 DOI: 10.1002/9781118874905.ch19
M. Bland
{"title":"The Correlation Coefficient","authors":"M. Bland","doi":"10.1002/9781118874905.ch19","DOIUrl":"https://doi.org/10.1002/9781118874905.ch19","url":null,"abstract":"Correlation coefficients are used to measure the strength of the relationship or association between two quantitative variables. For example, Table 1 shows height, muscle strength and age in 41 alcoholic men. We will begin with the relationship between height and strength. Figure 1 shows a plot of strength against height. This is a scatter diagram. Each point represents one subject. If we look at Figure 1, it is fairly easier to see that taller men tend to be stronger than shorter men, or, looking at the other way round, that stronger men tend to be taller than weaker men. It is only a tendency, the tallest man is not the strongest not is the shortest man the weakest. Correlation enables us to measure how close this association is.","PeriodicalId":128458,"journal":{"name":"Sample Sizes for Clinical, Laboratory and Epidemiology Studies","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133921721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Observer Agreement Studies 观察员协定研究
Sample Sizes for Clinical, Laboratory and Epidemiology Studies Pub Date : 2009-01-30 DOI: 10.1002/9781444300710.CH14
D. Machin, M. Campbell, S. Tan, S. Tan
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引用次数: 4
Reference Intervals and Receiver Operating Curves 参考区间和接收者操作曲线
Sample Sizes for Clinical, Laboratory and Epidemiology Studies Pub Date : 2009-01-30 DOI: 10.1002/9781444300710.CH13
D. Machin, M. Campbell, S. Tan, S. Tan
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引用次数: 6
Basic Design Considerations 基本设计注意事项
Sample Sizes for Clinical, Laboratory and Epidemiology Studies Pub Date : 2005-01-28 DOI: 10.1002/9781118458167.CH3
S. Chow, Jen‐pei Liu
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引用次数: 7
Further Design Considerations 进一步的设计考虑
Sample Sizes for Clinical, Laboratory and Epidemiology Studies Pub Date : 2004-05-27 DOI: 10.1201/9781420025842.CH4
T. Coles
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引用次数: 1
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