Poststratification Without Population Level Information on the Poststratifying Variable With Application to Political Polling
缺少总体分层变量信息时的后分层:政治民调应用AI 解读 ↓
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缺少总体分层变量信息时的后分层:政治民调应用AI 解读 ↓
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We investigate the construction of more precise estimates of a collection of population means using information about a related variable in the context of repeated sample surveys. The method is illustrated using poll results concerning presidential approval rating (our related variable is political party identification). We use poststratification to construct these improved estimates, but because we do not have population level information on the poststratifying variable, we construct a model for the manner in which the poststratifier develops over time. In this manner, we obtain more precise estimates without making possibly untenable assumptions about the dynamics of our variable of interest, the presidential approval rating.