Answer:
- May be expensive and time-consuming
- Have a higher expected response rate than self-administered surveys and telephone interviews
Explanation:
Note, personal interview implies that a researcher does not conduct his survey online or via telephone but rather through one on one contact with respondents.
This may be expensive and time-consuming since the researcher may have to transport him or herself to the location of each survey respondent. There is a better chance of getting a higher response rate than self-administered surveys and telephone interviews because of the presence of the researcher as he can easily persuade respondents.