# Data analysis descriptive

### Video lectures

- A data matrix in SPSS
- Causality and Explanation
- Central tendency: mode, median and mean
- Changing variables in SPSS using recode
- Cross sectional studies
- Cross tabs (making a cross tab)
- Frequency tables
- Interpreting bivariate tables
- introduction SPSS
- IQR and box plot
- Merging data files
- Recoding and creating a variable
- SPSS for absolute beginners
- The effect of Third Variables
- The effect of Third Variables: addition
- The effect of Third Variables: confounding
- The effect of Third Variables: general
- The effect of Third Variables: interpretation
- The effect of Third Variables: modification
- Variance and standard deviation
- Various types of bivariate relationships
- Z-scores