Head Start Impact Study

<p>Nationally representative, longitudinal information from an evaluation where children were randomly assigned to Head Start or community services as usual;direct assessments and observations of children as well as parent and staff interviews were conducted</p>

该数据集包含全国代表性的纵向信息，来源于一项评估研究，其中儿童被随机分配至Head Start项目或常规社区服务；对儿童及其家长及工作人员进行了直接评估和观察，并进行了访谈。