THE DUOLINGO EFFECT: HOW KEEPING THE ‘STREAK’ IS CHANGING PEOPLE’S BEHAVIOR

Summary from the TLDR Design newsletter

A recent study published in the Journal of the Academy of Marketing Science explains why streaks effectively retain users and influence their behavior. As a result of their unique design, streaks help users connect higher-level goals to lower-level goals, enable them to act within structures that simplify thinking and decision-making, and speak directly into their self-image.