A study of about n=1000 individuals in the United States during September 21-22, 2001, revealed that 43% of the respondents indicated that they were l

Clifland 2021-06-22 Answered
A study of about n=1000 individuals in the United States during September 21-22, 2001, revealed that 43% of the respondents indicated that they were less willing to fly following the events of September 11, 2001.
a. Is this an observational study or a designed experiment?
b. What problems might or could have occurred because of the sensitive nature of the subject? What kinds of biases might have occurred?

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Answered 2021-06-23 Author has 4972 answers
(a) An experiment deliberately imposes some treatment on individuals in order to observe their responses.
An observational study tries to gather information without disturbing the scene they are observing.
The subjects were asked a question without the researchers trying to influence the scene they are observing.
(b) Measurement or response bias will use a method that gives different values from the true value.
It is possible that the subjects will not be willing to answer truthfully due to the somewhat sensitive nature (as they don’t want other people to overhear their answer or becatise they are afraid to say that they are willing to fly).
Thus we then note the study could contain response bias.
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