A little flower power, a little behavior science, and a reminder from B. F. Skinner.

Featuring colorful retro-inspired flowers and Skinner's quote, “The way positive reinforcement is carried out is more important than the amount,” this design celebrates a foundational principle of behavior analysis.

The message highlights an important distinction: effective reinforcement isn't simply about providing more. How reinforcement is arranged and delivered—including its timing, contingency, and relevance to the individual—matters when supporting meaningful behavior change.

With its playful floral artwork and thoughtful behavior-analytic message, this tee brings together science, history, and a little vintage charm.

Perfect for behavior analysts, educators, psychology students, and anyone who appreciates the science behind behavior.

Product details: Bella + Canvas 3413; 50% polyester, 25% combed ring-spun cotton, 25% rayon; 3.4 oz/yd²; pre-shrunk; regular fit; side-seamed; lightweight tri-blend.

Production: Made to order to reduce overproduction.