Answering Questions with Data

Matthew J. C. Crump · Web editionFree to read, no login

  1. Preface
  2. 1 Why Statistics?
  3. 2 Describing Data
  4. 3 Correlation
  5. 4 Probability, Sampling, and Estimation
  6. 5 Foundations for inference
  7. 6 t-tests
  8. 7 ANOVA
  9. 8 Repeated Measures ANOVA
  10. 9 Factorial ANOVA
  11. 10 More On Factorial Designs
  12. 11 Simulating Data
  13. 12 Thinking about answering questions with data
  14. 13 GIFs
  15. References

Adapted from Answering Questions with Data: Introductory Statistics for Psychology Students, by Matthew J. C. Crump (Brooklyn College of CUNY), crumplab.com/statistics, licensed under CC BY-SA 4.0. Portions adapt Danielle Navarro's Learning Statistics with R (CC BY-SA). Changes were made; this adaptation is distributed under the same license.

License: CC-BY-SA-4.0. Licensed under a Creative Commons Attribution-ShareAlike 4.0 License; this adaptation is distributed under the same license.

These eBooks are a prerelease and are not yet certified conformant with WCAG 2.1 AA or ADA Title II. Every page is built against an automated accessibility gate, and the published editions will meet ADA Title II requirements when they release in late September 2026. If something is unusable, please tell us.