Deck 6: Variations on Random Sampling

Question 1

The most important characteristic of a good sample is that it is free from what?

A) Bias
B) Random facts
C) Random sampling

Answer 1

A

Question 2

Which is NOT true about a simple random sample?

A) Put names on slips of paper and draw the number needed for the sample
B) Use a table of random numbers to select participants
C) Individuals in the population have an equal chance of being selected
D) Divide the population into strata

Answer 2

D

Question 3

How is stratified random sampling superior to simple random sampling?

A) Drawing participants at random from each stratum represents the same proportions in the population
B) Increases the chance of sampling error
C) Eliminates sampling error completely
D) Use a table of random numbers to select participants

Answer 3

A

Question 4

If a research is interested in how freshmen and seniors in college differ in their opinion on alcohol consumption and would like to draw samples separately from each group, what kind of sampling is the researcher using?

A) Simple random sampling
B) Stratified random sampling
C) Cluster random sampling

Question 5

in a large scale sampling, multistage random sampling is used.

Question 6

What is NOT an advantage of cluster random sampling?

A) There are fewer individuals for the researcher to contact
B) It is useful for a large geographical area
C) The degree of cooperation is likely to be higher
D) The number of clusters instead of individuals to be treated as the sample size