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Finding the Philosophical Core: A Review of Stephen C. Pepper’s World Hypotheses: A Study in Evidence

June 24, 2026

Read the following article (reading time: 1 hr 37 min) and pass an 9-question quiz on it:

  • Hayes, S. C., Hayes, L., J., & Reese, H. W. (1988). Finding the philosophical core: A review of Stephen Pepper’s world hypotheses: A study in evidence. Journal of the Experimental Analysis of Behavior, 50, 97- 111. https://doi.org/10.1901/jeab.1988.50-97

Article Quiz | 2 CEUs | $19.99

Humble Behaviorism Redux

June 22, 2026

Read the following article (reading time: 1 hr 23 min) and pass an 8-question quiz on it:

  • Kirby, M. S., Spencer, T. D., & Spiker, S. T. (2022). Humble behaviorism redux. Behavior and Social Issues, 31 (1), 133-158. https://doi.org/10.1007/s42822-022-00092-4

Article Quiz | 1.5 Ethics CEUs | $14.99

The Multiple Control of Verbal Behavior

June 22, 2026

Read the following article (reading time: 1 hr 46 min) and pass a 10-question quiz on it:

  • Michael, J., Palmer, D.C., & Sundberg, M.L. (2011). The multiple control of verbal behavior. The Analysis of Verbal Behavior, 27 (1), 3-22. https://doi.org/10.1007/BF03393089

Article Quiz | 2 CEUs | $19.99

Relational Operants: Processes and Implications: A Response to Palmer’s Review of Relational Frame Theory

June 22, 2026

Read the following article (reading time: 1 hr 4 min) and pass a 6-question quiz on it:

  • Hayes, S.C., & Barnes-Holmes, D. (2004). Relational operants: Processes and implications: A response to Palmer’s review of relational frame theory. Journal of the Experimental Analysis of Behavior, 82 (2), 213- 224. https://doi.org/10.1901/jeab.2004.82-213.

Article Quiz | 1 CEU | $9.99

Data in Search of a Principle [Review of the Book Relational Frame Theory: A Post-Skinnerian Account of Human Language and Cognition]

June 22, 2026

Read the following article (reading time: 1 hr 44 min) and pass a 10-question quiz on it:

  • Palmer, D.C. (2004). Data in search of a principle [Review of the book Relational frame theory: A post-Skinnerian account of human language and cognition by S.C. Hayes, D. Barnes-Holmes, B. Roche. Journal of the Experimental Analysis of Behavior, 81 (2), 189-204. https://doi.org/10.1901/jeab.2004.81-189.

Article Quiz | 2 CEUs | $19.99

The Abstracted Operant [Review of the Book Relational Frame Theory: A Post-Skinnerian Account of Human Language and Cognition]

June 22, 2026

Read the following article (reading time: 58 min) and pass a 6-question quiz on it:

  • Galizio, M. (2003). The abstracted operant: A review of the book Relational frame theory: A post-Skinnerian account of human language and cognition by S. C. Hayes, D. Barnes-Holmes, B. Roche. The Behavior Analyst, 26 (1), 159-169. https://doi.org/10.1007/BF03392074

Article Quiz | 1 CEU | $9.99

Relational Frame Theory: An Overview of the Controversy

June 17, 2026

Read the following article (reading time: 56 min) and pass an 8-question quiz on it:

  • Gross, A. C., & Fox, E. J. (2009). Relational frame theory: An overview of the controversy. The Analysis of Verbal Behavior, 25 (1), 87-98. https://doi.org/10.1007/BF03393073

Article Quiz | 1 CEU | $9.99

Understanding Metaphor: A Relational Frame Perspective

June 17, 2026

Read the following article (reading time: 42 min) and pass an 8-question quiz on it:

  • Stewart, I. & Barnes-Holmes, D. (2001). Understanding metaphor: A relational frame perspective. The Behavior Analyst, 24 (2), 191-199. https://doi.org/10.1007/BF03392030

Article Quiz | 1 CEU | $9.99

VB and RFT Focus Pack: Advanced Topics 

June 3, 2026

In 2001, the first book-length treatment of relational frame theory (RFT) was published. It spawned several reviews and critiques in behavior-analytic journals, including prominent ones by Mark Galizio and David Palmer. Two of the lead authors of the RFT book (Steve Hayes and Dermot Barnes-Holmes) published a response to those critiques. Then, in 2011, Jack Michael, David Palmer, and Mark Sundberg published an article on multiple control, which they assert can account for derived relations and naming. In this focus pack, you will read all of these articles to gain a better understanding of the advanced topics surrounding the analysis of complex human behavior.

Focus Pack | 7 CEUs | $69.99

VB and RFT Focus Pack: The Basics

June 2, 2026

Begin exploring the differences and similarities between B.F. Skinner’s analysis of verbal behavior (VB) and relational frame theory (RFT) with this collection of article quizzes. You will learn how RFT extends Skinner’s interpretation of metaphor, an approach to synthesizing both RFT and Skinner’s VB, and an overview of what RFT is and why it has been controversial in behavior analysis. This focus pack includes three quizzes based on these articles and a final, integrative quiz that encourages comparison and synthesis.

Focus Pack | 4 CEUs | $39.99

Humble Behaviorism Focus Pack

May 19, 2026

In 1991, Allen Neuringer published a call for behaviorists to be more humble. He argued that greater humility would be functional in that it would lead to greater collaboration, better research, and more widespread acceptance of behavioral research. In 2022, Kirby and colleagues revisited Neuringer’s call and integrated it with other recommendations by behavior analysts to present a framework of cultural reprocity. This focus pack includes two quizzes based on these articles and a final, integrative quiz that encourages comparison and synthesis.

Focus Pack | 2.5 Ethics CEUs | $24.99

Behavioral Gerontology Focus Pack

May 11, 2026

This focus pack includes one interactive video and six article quizzes that explore the world of behavioral gerontology. Learn how the principles of behavior analysis can be used to improve the lives of older adults and examine several research studies focusing on this area.

Focus Pack | 8 CEUs | $79.99

The Shame of American Education

March 26, 2026

Read the following article and pass a 5-question quiz on it:

  • Skinner, B. F. (1984). The shame of American education. American Psychologist39(9), 947–954.

Article Quiz | 1 CEU | $9.99

Updated Format for Visual Analysis Practice Activities

March 10, 2026

We have updated the format used for many of the practice activities in our tutorial, Mastering the Basics of Visual Analysis. The new format should work more reliably across browsers and devices for a delightful problem-free learning experience for all!

Group License Improvements

December 31, 2025

All of our CEU modules can now be included in a group license purchase! We also added these features to the group license purchase page:

  • A handy “quick view” button next to each module to give you a quick overview its key details (e.g., number of CEUs) in a pop-up window
  • An FAQ for quick reference on the side of the page

CHECK IT OUT

Earn 150 Star Points for Referring a Friend!

December 12, 2025

You can now earn 150 Star Points (worth $15 off your next purchase) just for referring a friend (or enemy…we’re not picky) to CEUniverse! Visit the Star Points section of the myAccount dashboard to get your custom referral link.

Or—if you’d prefer to receive cold, hard cash for your referrals—check out our Affiliate Program!

New Format for Article Quizzes

December 8, 2025

In an effort to improve compliance with the BACB standards for continuing education (which remain oddly focused more on “seat time” than competencies), we have implemented a “lesson timer” for article quizzes. You will now be required to spend a specified amount of time reading each article before you can attempt the quiz. Reading time is calculated from the article’s length using evidence-based average reading speeds.

End of Gift Cards

December 6, 2025

Due to limited use, recurring problems with our gift card software, and a desire to streamline our site as much as possible, we have decided to discontinue gift cards (just in time for the holidays!). Existing balances were migrated to Star Points for active users. If you had a gift card balance that was not converted to Star Points, please let us know!

B.F. Skinner on Behaviorism and Verbal Behavior

August 10, 2025

In this interview conducted by Eve Segal in 1988, B.F. Skinner discusses the evolution of verbal behavior, emphasizing its role in understanding the mind and human behavior. He argues against introspection and cognitive psychology, advocating for behaviorism’s focus on environmental influences.

Interactive Video | 2 CEUs | $19.99

An Interview with Leonard Green

May 26, 2025

In this interview, Leonard Green shares his unexpected path into behavior analysis, sparked by undergraduate courses and influential readings. He reflects on the dynamic developments of the 1960s and 70s, including the matching law and interdisciplinary work blending economics and psychology. Green highlights his research on discounting and its broader applications, while expressing concern over stagnation in the field. Despite challenges, he remains optimistic about the future, emphasizing the need for rigorous science and innovation in behavior analysis.

Interactive Video | 1 CEU | $9.99