1. Descriptive Statistics
- Mean, median, mode, standard deviation, variance, range
- Frequency tables, cross-tabulation (crosstabs)
- Charts: histogram, box plot, scatter plot, bar chart, pie chart
2. T-tests & Mean Comparison
- One-sample t-test
- Independent samples t-test (two group comparison)
- Paired samples t-test (before-after data)
- One-way ANOVA, two-way ANOVA, repeated measures ANOVA
- Post-hoc tests: Tukey, LSD, Scheffe
3. Correlation & Regression Analysis
- Pearson correlation, Spearman rank correlation
- Simple linear regression
- Multiple linear regression
- Logistic regression (binary & multinomial)
- Ordinal regression
- Weighted regression
4. Non-parametric Tests
- Mann-Whitney U, Wilcoxon signed-rank
- Kruskal-Wallis, Friedman test
- Chi-square test for independence
5. Factor & Dimension Reduction
- Exploratory Factor Analysis (EFA)
- Principal Component Analysis (PCA)
- Reliability test: Cronbachs Alpha
6. Advanced Statistical Models
- Cluster analysis (hierarchical & k-means clustering)
- Discriminant analysis
- Survival analysis
- Multivariate MANOVA
- Time series analysis (forecast, ARIMA)