Transcript text: Identify the sampling techniques used, and discuss potential sources of bias (if any). Explain.
Every sixteenth person entering a mall is asked to choose his or her favorite store from a list of five different stores that includes a description of each.
What type of sampling is used?
A. Simple random sampling is used, because every sample of a given size has an equal chance of being selected.
B. Stratified sampling is used, because the population is divided into groups, and random samples are taken from each group.
C. Convenience sampling is used, because the researchers contact the easiest people to reach.
D. Cluster sampling is used, because the population is divided into groups, several groups are selected, and every person in those groups is contacted.
E. Systematic sampling is used, because every sixteenth person is selected.
What potential sources of bias are present, if any? Select all that apply.
A. The wording of the question may direct respondents towards a particular store.
B. People who do not enter the mall are not sampled.
C. If there is a regular pattern to the people entering the mall, the sample may not be representative.
D. There are no potential sources of bias!