Hints for Quiz on Sampling

1.   What aspects of a population are specified in its definition? I.e. geography, time, etc.
2.  What is true about all probability samples?
3.  What is the problem of periodicity and in which type of sampling design might it occur?
4.  Do more homogeneous populations require a larger or smaller sample size?
5.  When is a disproportionate stratified sample used?
6.  How does a researcher minimize sampling error?
7.  Why are cluster/area sampling designs subject to greater sampling error?
8.  With disproportionate stratified samples, the variables on which the researcher stratifies on are--?
9.  Which of the following best illustrates an availability sample?
10. How are quota and stratified sampling similar?