Golden Bear Omnibus Survey 2007

The sample for the 2007 GBO is a dual frame sample, consisting of two parts: (1) a sample of cell phones within California; (2) a sample of residential landline telephones in California. In the landline sample one person per household was selected to be interviewed. Only English or Spanish speakers, resident in California, aged 18 and over were eligible to be included in the sample. The number of completed interviews was 1,1862007年GBO的抽样样本采用双框架抽样设计，包含两个子样本：(1) 加利福尼亚州境内的手机抽样样本；(2) 加利福尼亚州的住宅固定电话抽样样本。在固定电话抽样样本中，每个受访家庭仅选取1名成员参与访谈。本次抽样的纳入条件为：居住在加利福尼亚州、年满18周岁且能够使用英语或西班牙语进行交流的人群。最终完成的访谈共计1186份。