Chapter 22 - Collecting Quantitative Data

Question 1

What is an interview?

Answer 1

The process of a researcher verbally asking a participant questions and recording that person’s responses

Question 2

What is a Self-administered survey

Answer 2

It uses a questionnaire form that participants complete by themselves, using either a paper-and-pencil version or an online version of survey

Question 3

If you were planning to interview people in person, what would be the best recruiting method?

Answer 3

The best recruiting method may be to have in-person conversations with potential recruits in a clinical setting, at work, at school, at a public venue, etc.

Question 4

If you were planning to interview people by telephone, what would be the best recruiting method?

Answer 4

It may be possible to recruit some participants with cold calls

Question 5

If you were planning to interview people via the internet, what would be the best recruiting method?

Answer 5

Contacting potential participants via email or a website may be the most effective method

Question 6

What method would result in a relatively higher participation rate?

Answer 6

• The participation rate will likely be higher if a letter of invitation is sent first.
• Sending a letter will also allow for the acquisition of signed informed consent forms prior to the interview, if they are required.

Question 7

What are the three main methods for recording data? List one or two examples under each main method

Answer 7

1) Record responses on paper and then enter responses into a database later (e.g. Mail/postal delivery)

2) Enter responses directly into a computer or a device (e.g. email/internet-based survey)

3) In the presence of the researcher (e.g. telephone call, in-person face-to-face interview)

Question 8

What is interviewer bias?

Answer 8

A form of information bias that occurs when interviewers systematically question cases and controls or exposed and unexposed members of a study population differently

Question 9

How can the risk of interviewer bias be minimized?

Answer 9

Keep the interview process the same for all participants in a study. All interviewers should be provided with the tools they need to follow a standardized set of procedures.