Data on almost 57,000 people from 65 countries suggests that the Satisfaction With Life Scale (SWLS)—a widely used research tool—generally holds up well when applied across diverse groups of people, underscoring its potential value in research and policymaking. Data on almost 57,000 people from 65 countries suggests that the Satisfaction With Life Scale (SWLS)—a widely used research tool—generally holds up well when applied across diverse groups of people, underscoring its potential value in research and policymaking. Social Sciences Phys.org – latest science and technology news stories