Change Log

The current version of this textbook is 1.6.0

This version has been compiled on April 19, 2026.

This version was generated from Git commit #d2e32ef3. All version controlled changes can be found on GitHub.

This page documents the changes to the textbook that were more substantial than fixing a typo.

Updates

April 19, 2026:

Removed BEST/rjags dependency from CH 9 by replacing the ROPE section with a static example. Added example and improved code CH 17 for test of correlations. Corrected informationRates CH 10 from 72/206 to 76/206. Several minor fixes in the code underlying the book, added requirements and build instructions. Updated logo and figure 15.1. Fixed some MC questions. Updated figures from density to counts. Updated forest plots. Added tests.

June 20, 2024:

Updated NNT example CH 6. Several clarifications based on feedback, updated citations.

June 20, 2024:

Added CH 17

March 22, 2024:

Updated CI figure in CH 7, incorporated feedback LeFoll, updated references

February 21, 2024:

Added section on subgroup analyses, updates section on heterogeneity in CH 11

February 15, 2024:

Expanded section on “Why Effect Sizes Selected for Significance are Inflated” in CH 6

January 10, 2024:

Added the section ‘Deviating from a Preregistration’ in CH 13

October 15, 2023:

Incorporated extensive edits by Nick Brown in CH 4-6.

September 6, 2023:

Incorporated extensive edits by Nick Brown in CH 1-3.

August 27, 2023:

Add CH 16 on confirmation bias and organized skepticism. Add Bakan 1967 quote to CH 13.

August 12, 2023:

Added section on why standardized effect sizes hinder the interpretation of effect sizes in CH 6. Added Spanos 1999 to CH 1. Split up the correct interpretation of p values for significant and non-significant results CH 1. Added new Statcheck study CH 12. Added Platt quote CH 5.

July 21, 2023:

Added “Why Effect Sizes Selected for Significance are Inflated” section to CH 6, moved main part of “The Minimal Statistically Detectable Effect” from CH 8 to CH 6, replaced Greek characters by latex, added sentence bias is expected for papers that depend on main hypothesis test in CH 12.

July 13, 2023:

Updated Open Questions in CH 1, 2, 3, 4, 6, 7, 8 and 9. Added a figure illustrating how confidence intervals become more narrow as N increases in CH 7.

July 7, 2023:

Added this change log page.

June 12, 2023:

Added an updated figure from Carter & McCullough, 2014, in the chapter in bias detection, now generated from the raw data.

May 5, 2023:

Added the option to download a PDF and epub version of the book.

March 19, 2023:

Updated CH 5 with new sections on falsification, severity, and risky predictions, and a new final section on verisimilitude.

March 3, 2023:

Updated book to Quarto. Added webexercises to all chapters.

February 27, 2023:

Added a section “Dealing with Inconsistencies in Science” to CH 5.

October 4, 2022:

Added CH 15 on research integrity.