Which of the Following Statements About Sample Control Is True

question 19

Multiple Choice

Which of the following statements about sample control is true?

• A) Mailing lists for mail surveys are sometimes unavailable,outdated,or incomplete.
• B) It can be difficult to prevent respondents from completing an Internet survey multiple times.
• C) It is possible to identify specific user groups within a mail panel and to direct the survey to households with specific characteristics.
• D) All of the above statements are true.

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Definitions:

Positive Externality

A benefit that is enjoyed by a third-party as a result of an economic transaction or activity in which they did not directly participate.

Marginal Social Benefit

The additional benefit to society from consuming one more unit of a good or service.

Marginal Private Cost

The cost incurred by a firm for producing one additional unit of a good, exclusive of any external costs.

Technology Spillovers

Benefits that firms or countries obtain by imitating or learning from the innovations of others, often without incurring the cost of innovation.