Questions
21
Which of the following is not true about stratified random sampling?
Answer: Proportions of groups in the sample must always match their population proportions
22
Which of the following is not a form of nonrandom sampling?
Answer: They are all forms of nonrandom sampling
23
Which of the following would generally require the largest sample size?
Answer: Cluster sampling
24
A type of sampling used in qualitative research that involves selecting cases that disconfirm the researcher's expectations and generalizations is referred to as _______________.
Answer: Negative-case sampling
25
Using Figure 6.6 (pg. 178), how many participants will you need for a research study with a population of 120,000?
Answer: 384
26
If we took the 500 people attending a school in New York City, divided them by gender, and then took a random sample of the males and a random sampling of the females, the variable on which we would divide the population is called the _____.
Answer: Stratification variable
27
It is recommended to use the whole population rather than a sample when the population size is of what size?
Answer: 100 or less
28
Which of the following is not an example of a nonrandom sampling technique?
Answer: Cluster
29
___________ is a set of elements taken from a larger population according to certain rules.
Answer: Sample
30
Which of the following statements are true?
Answer: The more categories or breakdowns you want to make in your data analysis, the larger the sample needed
