Adoption
The Default Effect
A cognitive phenomenon where default systematically influences perception or decision-making.
Default Effect is a cognitive phenomenon identified in behavioral science that shapes how users perceive, remember, and decide. In product design, Default Effect explains why users behave in ways that seem irrational from a purely functional perspective. Products that understand Default Effect can design experiences that work with human psychology rather than against it. Products that ignore Default Effect create friction, confusion, and abandonment. Default Effect is one of many cognitive effects that form the behavioral substrate of JTBDUX thinking.