A method of collecting data through oral questioning of a respondent, either in person, or over the telephone.
A method of collecting data through oral questioning of a respondent, either in person, or over the telephone.
通过面对面或电话来口头询问被访者的数据收集方法.
A method of collecting data through oral questioning of a respondent, either in person, or over the telephone.
通过面对面或电话来口头询问被访者的数据收集方法.