Researchers wished to investigate the relationship between parenting styles and adolescents' susceptibility to peer pressure. They decided to survey a stratified sample of 150 16-year-old students from five different local colleges. Some of these colleges had a very large student population, while others had a much smaller student population. The students completed a questionnaire detailing their parents' child-rearing approaches, their own social media habits, and their susceptibility to peer influence.
Explain how the researchers could have obtained a stratified sample of 150 students from the five different colleges.
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