By Dr. Rassel Kassem | 2026-08-27T07:03:25+00:00 August 20th, 2026 |
The Generality Trap in Management How the Barnum Effect Shapes Decision-Making and Performance Evaluation Dr. Rassel Kassem The original Arabic version of this article was published in Harvard Business Review Arabia on August 19, 2026. -------------------------------------------------------------------------------------------------------------------------------------- In 1948, psychologist Bertram Forer conducted a landmark experiment that demonstrated what later became known as the Barnum effect. [...]