Which data collection method is most vulnerable to researcher ...

[codyclark]

Which data collection method is most vulnerable to researcher bias?
 
  a. Questionnaires
  b. Available data
  c. Observation methods
  d. Physiologic measurement

Question 2

What advantage is shared by both interview and questionnaire data collection methods?
 
  a. Both seek to understand the attitudes, beliefs, and feelings of participants.
  b. Both are analyzed by statistical methods selected by the researcher.
  c. Both require extensive training of the researcher coordinating the study.
  d. Both are paper-and-pencil tests implemented by the researcher.

[jojobee318]

Answer to Question 1

ANS: C

Feedback
A Questionnaires, because they are prestructured, are less susceptible to researcher bias.
B Available data do not constitute a data collection method.
C Researcher bias can most affect observational methods because the researcher is the observer.
D Physiologic measurement is objective and less susceptible to researcher bias.

Answer to Question 2

ANS: A

Feedback
A Interviews and questionnaires are both good for understanding the attitudes, beliefs, and feelings of participants.
B Interviews are not usually analyzed using statistics.
C Interviews and questionnaires do not necessarily require extensive researcher training.
D Interviews are not usually paper-and-pencil tests.

[codyclark]

Great answer, keep it coming

[Jsherida]

Gracias!