課程資訊
課程名稱
統計思考
Statistical Thinking 
開課學期
106-2 
授課對象
公共衛生學院  公共衛生學系  
授課教師
杜裕康 
課號
EPM5001 
課程識別碼
849 U0300 
班次
 
學分
2.0 
全/半年
半年 
必/選修
選修 
上課時間
星期五3,4(10:20~12:10) 
上課地點
公衛213 
備註
限研究生和大三,大四學生選修。
限學士班三年級以上
總人數上限:40人 
Ceiba 課程網頁
http://ceiba.ntu.edu.tw/1062EPM5001_STAT_TH 
課程簡介影片
 
核心能力關聯
本課程尚未建立核心能力關連
課程大綱
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課程概述

It is essential for graduate students to develop critical thinking in order to identify caveat in current research, develop new approaches to existing research problems and explore new horizon in their research fields. Students would find it very helpful, if real examples in clinical and epidemiological research are used to demonstrate how to achieve these goals, and this is the aim of this course. The syllabus of this course will loosely follow the order of chapters in my new book of the same title published by Chapman & Hall this summer with supplementary materials. Two tools to promote understanding of statistical modelling will be first introduced: vector geometry for linear models and the directed acyclic graphs for causal thinking. Then, background knowledge will be provided for students to identify the potential caveats and to use their previous knowledge to choose the most appropriate approaches or to develop new approaches. Potential scenarios and examples used in this course include:
• Testing the relation between baseline and changes
• The use of ratio variables in regression analysis
• Statistical methods for testing differences in changes in randomised controlled trials
• Lord’s paradox and the adjustment of baseline values in observational studies
• The problem of collinearity in linear models
• Testing statistical and biological interaction
• Confounding, causality and Simpson’s paradox
• Reversal paradox and the adjustment of intermediate variables on a causal pathway
• Testing direct, indirect and total effects
Students will be asked to give presentations to discuss the reading materials and lead discussion. Students’ performance will be assessed by their participation in the classroom discussion, their presentations and the final essays on one of the topics discussed in the course.
 

課程目標
By the end of this course, students should be able to:
• Describe the rationales of directed acyclic graphs in causal inference
• Describe how to use vector geometry to represent linear models
• Describe the problems with mathematical coupling in testing associations between variables
• Explain the problem of regression to the mean with assessing the impact of baseline measurements on changes from baseline
• Explain the potential problems caused by imbalance in baseline covariates in assessing group differences in changes from baseline
• Describe the strength and limitations in methods for adjusting baseline imbalance
• Describe the conceptual relations between biological and statistical interaction
• Explain the causes and potential solutions to the problem of reversal paradox
• Explain the different approaches to separate direct and indirect effects and their underlying assumptions
 
課程要求
Students are required to do a mid-term and final presentation on their projects and submit final group project at the end of the course. 
預期每週課後學習時數
 
Office Hours
 
指定閱讀
• Journal articles
• Yu-Kang Tu, Mark Gilthorpe: “Statistical Thinking in Epidemiology”. Chapman & Hall, 2012.
 
參考書目
• Judea Pearl. “Causality” 2nd edition. Cambridge University Press, 2010.
• Bjorn Andersen. Methodological errors in medical research. London: Blackwell, 2000.
• Steven Sloman. “Causal Models”. Oxford University Press, 2005.
 
評量方式
(僅供參考)
 
No.
項目
百分比
說明
1. 
class participation 
30% 
 
2. 
oral presentation 
40% 
 
3. 
written report 
30% 
 
 
課程進度
週次
日期
單元主題
第1週
03/02  What is “statistical thinking”? 
第2週
03/09  Causation and directed acyclic graphs (1)  
第3週
03/16  Causation and directed acyclic graphs (2)  
第4週
03/23  Vector geometry for linear models 
第5週
03/30  Regression to the mean 
第6週
04/06  調整放假 
第7週
04/13  Lord’s paradox and Simpson’s paradox (葉怡君博士和施銘杰醫師) 
第8週
04/20  Why is randomized controlled trial the “gold standard”? 
第9週
04/27  Instrumental variables (1) 
第10週
05/04  Instrumental variables (2) 
第11週
05/11  Propensity scores (1) 葉怡君博士 
第12週
05/18  Propensity scores (2) 葉怡君博士 
第13週
05/25  Regression discontinuity 
第14週
06/01  Special lecture: Causal mediation (1) 林聖軒老師 
第15週
06/08  Special lecture: Causal mediation (2) 林聖軒老師 
第16週
06/15  Student presentation (1) 
第17週
06/22  Student presentation (2) 
第18週
06/29  Student presentation (3)