B4SPSSBeginnerAbout 35 min to complete
Cleaning data you did not collect
Duplicates come first because a duplicated case multiplies every other problem it carries. Outliers come last because you cannot judge an extreme value until the impossible ones are gone.
Slides · Dataset
About 35 minutes to complete
Enrol to open the slides and download the data.
By the end of it
- Run the same seven-step sequence on any file you inherit
- Find all eight problems in the teaching export
- Decide what to do with every extreme value
- Keep a log that makes every change defensible
The dataset
Antenatal care and birth outcome — Sigma teaching dataset
A teaching dataset of 300 cases, generated from a fixed seed so every figure in the module reproduces exactly.
- CodebookIncluded
- Dataset (CSV)Included
- Dataset (CSV)Included
- SPSS syntaxIncluded