snowball sampling

基本解釋

A snowball sampling non-probability sample was used.
樣本的取樣方式採(cǎi)取非機(jī)率型之滾雪球抽樣法。
Methods Convenience sampling and snowball sampling were used to select respondents; questionnaire was used during the research.
方法採(cǎi)用滾雪球抽樣法和方便抽樣法選取對(duì)象，用自行設(shè)計(jì)的《同志健康需求評(píng)估》問(wèn)卷開(kāi)展調(diào)查。
Questionnaire survey was used in this research, and researchers selected college students from more than 20 universities of China as research participants through snowball sampling on Internet.
方法：?jiǎn)柧碚{(diào)查法，透過(guò)網(wǎng)絡(luò)採(cǎi)取滾雪球方式抽取二十多所高校的在校大學(xué)生爲(wèi)研究對(duì)象。