Archival Version

Each quarterly HRMS sample is drawn from the KnowledgePanel, a probability-based, nationally representative Internet panel maintained by GfK Custom Research. Beginning with the second quarter of 2013, the HRMS includes oversamples of adults with family incomes at or below 138 percent of the federal poverty level and adults from selected state groups based on (1) the potential for gains in insurance coverage in the state under the ACA as estimated by the Urban Institute's microsimulation model and (2) states of specific interest to the HRMS funders. Additional funders have supported oversamples of adults from individual states or subgroups of interest (including children). However, ICPSR received data only for the adults in the general national sample and the income and state group oversamples.

每季度的HRMS样本均取自捷孚凯定制研究部（GfK Custom Research）维护的知识面板（KnowledgePanel）——这是一个基于概率抽样、具备全国代表性的互联网调研面板。自2013年第二季度起，HRMS新增了两类超额抽样群体：一是家庭收入处于或低于联邦贫困线138%的成年人；二是基于以下两项标准选定的特定州群体的成年人：（1）经城市研究所（Urban Institute）微观模拟模型估算、在《平价医疗法案（Affordable Care Act，ACA）》框架下该州医保覆盖范围有望扩大的州；（2）HRMS资助方重点关注的州。另有其他资助方支持对特定州的成年群体或目标子群体（含儿童）开展超额抽样。但校际政治与社会研究联盟（Inter-university Consortium for Political and Social Research，ICPSR）仅获取了全国通用样本中的成年人数据，以及按收入和州群体开展的超额抽样样本数据。