D2SPSSIntermediateAbout 30 min to complete
One-sample and independent-samples t-test
What question each t-test answers.
Slides · Dataset
About 30 minutes to complete
Enrol to open the slides and download the data.
What this module covers
what question each t-test answers; the four assumptions and how to check each; Levene's test and the two rows of SPSS output — how to know which one is yours; the full menu path and dialog; reading the output; Cohen's d and how to interpret its magnitude; the confidence interval as the more useful number; APA reporting sentence.
By the end of it
- What question each t-test answers
- The four assumptions and how to check each
- Levene's test and the two rows of SPSS output — how to know which one is yours
- The full menu path and dialog
- Reading the output
- Cohen's d and how to interpret its magnitude
- The confidence interval as the more useful number
- APA reporting sentence
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