SigmaAnalytics & Tech
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.

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