Fabricant S J, Harpham T
Health Policy Unit, London School of Hygiene and Tropical Medicine, England.
Bull World Health Organ. 1993;71(3-4):341-8.
Data from interview surveys of households or health facilities are used to assess community parameters such as health status and factors related to the ability and willingness of individuals to pay for health services. Although the effect of sample size on confidence intervals is generally well understood by the survey designers and policy-makers who use the results, the typical survey is also subject to non-sampling errors whose magnitude may exceed that of the sampling errors. The non-sampling errors associated with surveys are only rarely assessed and reported, even though they may have a major effect on the interpretation of findings. The present study reports the non-sampling errors associated with a household survey in Sierra Leone by comparing the results of reinterviews with the responses given during the original interviews. Certain types of questions were subject to greater non-sampling errors than others. The findings should be of use to designers of similar surveys and to those who rely on such surveys for making policy decisions.
来自家庭或卫生机构访谈调查的数据用于评估社区参数，如健康状况以及与个人支付卫生服务费用的能力和意愿相关的因素。虽然样本量对置信区间的影响通常被使用调查结果的设计者和政策制定者所熟知，但典型的调查也会受到非抽样误差的影响，其大小可能超过抽样误差。与调查相关的非抽样误差很少得到评估和报告，尽管它们可能对研究结果的解释产生重大影响。本研究通过比较重新访谈结果与原始访谈中的回答，报告了塞拉利昂一项家庭调查中存在的非抽样误差。某些类型的问题比其他问题更容易出现较大的非抽样误差。这些发现应有助于类似调查的设计者以及那些依靠此类调查做出政策决策的人。
