Appendix — Data and build notes
ESS subset
- File:
ess.csv
- Countries: GB, DE, FR
- For variable descriptions, open the bundled HTML codebook:
ESS1e06_...subset codebook.html in your browser.
- Common missing-value codes: 66/77/88/99 or blank strings. All chapters use
na_if() to drop them before analysis.
Extending the material
- Swap dependent variables:
pplhlp (people helpful) or pplfair (people fair) can replace ppltrst without changing structure.
- Add country-level covariates by merging lookups (e.g., GDP or media freedom indices) before running multilevel models.
- Convert interaction plots to
ggplotly for live demos if desired.