In 1974, many 16-year-old boys in Britain left school without further education. Researchers studied these boys to understand what determines their success in the job market. They looked at their average earnings in different occupations in 1981. The study focused on boys who left school at 16 to compare their outcomes with those who stayed in school longer. The findings show that leaving school at 16 can impact future job success, and results may be different for those who stayed in school.