住户调查样本的老化及轮换

Sample aging and turn exchange of household survey

为了认识居民生活及其经济规律 ,必须对居民进行抽样调查 ,而被抽取住户的代表性 ,随时间的推移而改变。为此 ,人们采取轮换样本的做法 ,来减少代表性误差。本文以样本老化需要轮换 ,而轮换的依据是以老化程度为主线 ,研究老化的量度及轮换频率的确定原则。

For find denizen live status and economy rule, must versus denizen make sampling investigate. but, representative of denizen draw out sample alter of along with move of time. Therefor, people adopts exchange sample modus, win reduce sampling error. Article masterstroke sample aging needs turn exchange, and that aging is gist of sample turn exchange. The disquisition study is fundamental confirm of aging degree's measurement and sample turn exchange's frequency.