wk 6

Question 1

mail surveys

Answer 1

✔️low costs
✔️no interviewer bias
✔️suitable for sensitive topics
✖️low completion rates
✖️non-response bias
✖️errors arising from participants misunderstanding questions

Question 2

face to face interviews

Answer 2

✔️more control and flexibility over how the survey is administered
✔️can make use of computer technology
✖️interviewer bias
✖️high costs

Question 3

telephone interviews

Answer 3

✔️cost effective
✔️computer technology
✖️sampling bias
✖️interviewer bias
✖️low response rate

Question 4

internet surveys

Answer 4

✔️low costs
✔️access to large diverse populations
✔️quick data collection
✔️can be used in conjunction with specialist software to automate recruitment, data entry and data analysis
✖️sampling bias
✖️non response bias
✖️lower response rates compared to mail and phone call
✖️lack of control over research environment