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【简答题】
教育是一种社会历史现象，产生于生产劳动，其根本目的在于促使学生个体的全面发展，提倡教劳结合，教育科学的方法以唯物辩证法和历史唯物主义为基础，这一观点是（ ）的认识。
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皮皮学刷刷变学霸
举一反三
【单选题】In ________, sampling elements are selected by chance, that is, randomly.
A.
nonprobability sampling
B.
convenience sampling
C.
judgmental sampling
D.
probability sampling
E.
lotto sampling
【简答题】系统抽样(systematic sampling)
【单选题】Which of the following is a method of probability sampling?
A.
Simple random sampling
B.
Systematic sampling
C.
Stratified sampling
D.
All of the above are methods of probability sampling.
【单选题】A probability sampling technique in which the sample is chosen by selecting a random starting point and then picking every ith element in succession from the sampling frame is called ________.
A.
simple random sampling
B.
snowball sampling
C.
cluster sampling
D.
systematic sampling
E.
succession sampling
【单选题】________ is a nonprobability sampling technique that attempts to obtain a sample of convenient elements and leaves the selection of sampling units primarily to the interviewer.
A.
Convenience sampling
B.
Snowball sampling
C.
Simple random sampling
D.
Systematic sampling
E.
Window sampling
【多选题】The four commonly used non-probability sampling methods include:
A.
Convenience sampling
B.
Purposive sampling
C.
Quota sampling
D.
Snowball sampling
E.
Systematic sampling
F.
Stratified sampling
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