NU608 Exam Study Guide with Complete
Solutions
Target. Population - Answer-the entire group about which a researcher would like to be
able to generalize
simple random sampling - Answer-every member of the population has an equal probability
of being selected for the sample
Cluster Random Samp...
Greatest threat to external validity in this study - Answer✔✔-The use of students from one
school district
Example of nonrandom sampling method - Answer✔✔-Convenience sampling
stratified random sampling purpose is to - Answer✔✔-Ensure the sample proportionately
represents individual from different categories of the population
Population - Answer✔✔-group of individuals of the same species that live in the same area
Only probability sampling strategies yields representative samples. True or False - Answer✔✔-
True
simple random sampling - Answer✔✔-every member of the population has an equal probability
of being selected for the sample
sampling frame - Answer✔✔-Population of interest as defined through available records
Cluster sampling is often preferred to other random sampling strategies because - Answer✔✔-It
can be used when sampling frame is not available
Stratified random sampling is preferred strategy when - Answer✔✔-you want to include specific
subgroups in the study
Systemic sampling can produce biased Sample when - Answer✔✔-There is a structure to the
sampling frame
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