On this page you will find resources you can download as described in detail in the books Research Methodology: Best Practices for Rigorous, Credible, and Impactful Research (2025), and Regression Analysis for Categorical Moderators (2004). Resources are listed according to their inclusion in the various chapters in each book. For the computer programs, files are included in executable and source code versions. Once you download the files, you can execute them locally on your computer.
Place your mouse on each resource and then left-click it to download each.
| Chapter Number | Program/File Name | Source + Executable Files | Data Files |
|---|---|---|---|
| Chapter 9 | R Code for Errors-in-Variables-ANCOVA | link to R script | |
| Chapter 9 | Tools for estimating statistical power for moderation (i.e., interaction) tests | link to programs | |
| Chapter 10 | R script and illustrative data for multilevel modeling | link to annotated R code and data file | Chapter 10 | Program for power analysis in multilevel modeling | link to program |
| Chapter 11 | R Code and data files for Meta-regression analysis | link to R script and data files | |
| Chapter 12 | Market Basket Analysis illustrative data | Excel format | |
| Chapter 12 | Bayesian Analysis illustrative data | Excel format |
| Chapter Number | Program/File Name | Source + Executable Files | Data Files |
|---|---|---|---|
| Chapter 3 | MULTIVAR | MULTIVAR | |
| Chapter 3 | Pay for Performance Data | SPSS format Excel format |
|
| Chapter 4 | ALTMMR | link to ALTMMR | |
| Chapter 6 | CAQ | CAQ | |
| Chapter 7 | POWER | POWER | |
| Chapter 7 | MMRPWR | MMRPWR | |
| Chapter 7 | MMRPOWER | link to MMRPOWER | |
| Chapter 8 | MMRPOWER | link to MMRPOWER | |
| Chapter 9 | f 2 | link to f 2 |
