Random Digit Dialing Is Designed to

question 39

Multiple Choice

Random digit dialing is designed to

• A) increase the response rate in telephone surveys
• B) reduce costs in telephone surveys
• C) increase the representativeness of the sample in the telephone interviews
• D) relate telephone sampling to street addresses rather than phone book numbers
• E) provide the best cost estimates from research suppliers

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Definitions:

Third Variable Problem

The possibility that two variables may be correlated but do not exert a causal influence on one another; rather, both are caused by some additional variable.

Mutual Association

A relationship between two or more entities where both or all parties benefit or influence each other.

Correlation

A statistical measure that indicates the extent to which two or more variables fluctuate together. A positive correlation indicates that as one variable increases, so does the other.

Correlational Hypothesis

A prediction about the existence of a relationship between two variables, without implying causation.