Sampling Schemes 抽樣方法

抽樣方法可分為：
隨機抽樣
非隨機抽樣

隨機抽樣
simple random sampling 簡單隨機抽樣 - every element may be selected with equal chance
systematic sampling 系統抽樣/系統性抽樣 - every Kth element, e.g, 3, 10, 17, 24, ... (K=7)
stratified sampling 分層抽樣 - e.g. student age, university, major
cluster sampling 部落抽樣/叢集抽樣
multiphase sampling 多相抽樣 multistage sampling 多段抽樣

非隨機抽樣
convenience sampling 偶遇抽樣/方便抽樣
quota sampling 配額抽樣/定額抽樣
purposive sampling 主觀抽樣 / judgmental sampling 立意抽樣
snowball sampling 滾雪球抽樣

validity 效度

參考資料

Essentials of Probability & Statistics for Engineers & Scientists (Walpole at el.)，機率與統計 (繆紹綱譯，滄海2013), p8

Mathematical statistics with applications in R, Ramachandran & Tsokos, 2nd edition (2015), p8-12

統計學-李柏堅-第01章：抽樣 (CUSTCourses影片)