In addition, schools can become more segregated simply through other discriminatory practices at the school-level: some schools circumvent mandated school choice practices (such as ■first-come-first-serve’ acceptance) by only advertising to certain groups of high-achieving students and placing schools in areas that are typically homogenous and high-achieving. Furthermore, many researchers conclude that native parents/guardians select schools on the basis of race, ethnicity and class in addition to rational, objective measures of school quality, whereas immigrant parents tend to choose schools for different reasons, such as location of the school or the presence of students from same ethnic groups. Lightly-controlled choice schemes that use quotas or reserves to give a slight priority to disadvantaged students can establish a balanced compromise between providing an equitable education for all and allowing parents complete freedom of choice. Experiences from other countries show that lightly controlled choice programmes can provide choices for students and parents, while at the same time control the compositional balance of the student body often in terms of socioeconomic status.