Social Change Why some protest movements are more effective than others. "Social Change Lab undertook six months of research looking into what makes a protest movement successful. We examine factors such as numbers, nonviolence, diversity, external factors, the radical flank effect, and more. We conducted this research using a range of methods: literature review, public opinion polling, expert interviews and a case study." - Social Change Lab Report: What Makes a Protest Movement Successful? Google Docs Version Summary Blog Post