本题目来源于试卷: IB Psychology HL Approaches to Research on Behavior，类别为 IB心理学
[单选题]
A student is developing research to wby)amjx avp s;rs1k,3 rd4p -2us,-s understand the time and sv.c v,(a)rd irtress management of single working mothers in urban areas. What sampling technique would effectively help the student gar i(v ,v.d)crather the targeted participants for their study?
A. Random sampling
B. Stratified sampling
C. Convenience sampling
D. Purposive sampling
参考答案: D
本题详细解析:
In a purposive sampling technique (ch6lvjo, b z*1t veiu;/eoice D), participants are picked because they possess characteristics salient to the study, which is in this case, single, working mothers, in urban areas.
Choice A is a sampling technique which gives the target population an equal chance of being selected. Choice B, stratified sampling, involves acquiring a representative sample from a population that researchers have categorized into relatively homogeneous subpopulations or strata. With convenience sampling (choice C), the researchelejo6 1v *uvt/i e;z,br selects a sample that is easily accessible non-randomly.
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