Opinion of the autochtonous Dutch population about ethnic minorities. Contact with allochtonous population / representation of allochtonous population in sportclubs, hobbyclubs etc. / general opinion about Moroccan and Turkish persons in Dutch society / opinion about 'black schools' / representation of allochtonous population in various kinds of boards and committees / discrimination / differences in raising children by parents from allochtonous and autochtonous origin / characteristics of persons from Moroccan, Turkish, Surinamese and Dutch origin / ethnocentrism / opinion concerning freedom of religion or belief / opinion about granting residence permits by the Dutch government / satisfaction with living in the Netherlands.