A stratified random sample is used when:
A) simple random sampling is not possible
B) the researcher wants to guarantee representativeness on specified variables
C) a simple random sample would be very large
D) the researcher wants to simplify data analysis
Correct Answer:
Verified
Q12: The adequacy of cluster random sampling is
Q13: The most important feature of a table
Q14: Two-stage cluster sampling refers to:
A) selecting groups
Q15: Random sampling is least effective when:
A) a
Q16: A purposive sample is used when:
A) the
Q18: When a convenience sample is used, the
Q19: Recommended sample sizes are usually:
A) determined by
Q20: The term "external validity includes:
A) population generalizability
Q21: Ecological generalizability includes the:
A) characteristics of the
Q22: Which of the following is not true
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