Link to YouTube Channel

• Boxplot
1. Boxplot (part 1: introduction to boxplot)
2. Boxplot (part 2: Mathematics (upper adjacent value)
3. Boxplot (part 3: Mathematics (lower adjacent value)
• Pearson's chi-squared test and Fisher's exact test
1. Pearson's chi-squared test (part 1: introduction)
2. Pearson's chi-squared test (part 2: row- and column-wise calculations)
3. Pearson's chi-squared test (part 3: validity of Pearson’s chi-squared test)
4. Fisher's exact test (part 1: background)
5. Fisher's exact test (part 2: make a list of all scenarios)
6. Fisher's exact test (part 3: mathematics underlying Fisher’s exact test)
7. Fisher's exact test (part 4: detailed probability calculations) not ready at the moment
8. Fisher's exact test (part 5: 2-sided and 1-side Fisher's exact test p-values)
9. Pearson's chi-squared test and Fisher's exact test in Stata
10. Pearson's chi-squared test and Fisher's exact test in R not ready at the moment
11. Downloadable files on chi-squared test used by the YouTube channel
• vaccine400.dta
• vaccine40.dta
• chi2.do
• chi2.R
• Directed Acyclic Graph (DAG)
1. A big picture of DAG
• Normal distribution
1. QQ plot and QQnorm plot (not ready at the moment)
• Epidemiology: How to handle unmeasured confounding
1. Overview (bias analysis, bounding factor, E-value and G-value (not ready at the moment)