A second study documented a link between participation in a high school with a career academy approach (also known as "small learning communities"), a type of school-to-work program, and students' attendance rates among a group of students who were considered to be at high risk of dropping out of high school at the start of the study (Kemple & Snipes, 2000). The evaluation was experimental in design, meaning that individuals were chosen at random to either be eligible to enroll in the career academies or to participate in a control group, who could not enroll in the academies but could enroll in other schools if desired. Eligibility to participate in the career academy was related to an increase in average attendance of about eleven days of school per year across the high school years.