Lastige leerlingen 1985-1986

Investigation into the social causes of problem behaviour of primary school pupils in Groningen. The data in the seven files derive from interviews with teachers, parents and...格罗宁根（Groningen）小学生问题行为社会成因调查。该七个数据集文件中的数据源自针对教师、家长及……开展的访谈。