Differentiatie, doorstroming en sociaal milieu in het lager technisch onderwijs 1974

<p>School career: repeating classes, education after primary school, differentiation at technical school / occupation of father kind of industry, concern, etc., position. Background variables: basic characteristics</p>学业历程：课程重读、小学毕业后的教育经历、职业技术学校专业分流、父亲的职业与所属行业、相关影响因素及职位信息。背景变量：基础特征。