In an AOL survey of Internet users, this question was posted online: "Have you ever been hit by a computer virus?" Among the 170,063 responses, 63% answered "yes." What term is used to describe this type of survey in which the people surveyed consist of those who chose to respond? What is wrong with this type of sampling method?
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Part 1
What term is used to describe this type of survey? Select all that apply.
A.
The respondents are a census.
B.
The respondents are a population.
C.
The respondents are a self-selected sample.
D.
The respondents are a voluntary response sample.
Part 2
What is wrong with this type of sampling method? Select all that apply.
A.
Responses may not reflect the opinions of the general population.
B.
Many people may choose not to respond to the survey.
C.
It is too time consuming.
D.
The survey question is "loaded," or intentionally worded to elicit a desired response.
E.
It is too expensive.