When Preparing a Sampling Plan, the Researcher Needs to Decide

question 40

Multiple Choice

When preparing a sampling plan, the researcher needs to decide how to contact prospective subjects for the survey.The most common choices are:

• A)mail, telephone, and Internet.
• B)mail, telephone, and optical scan.
• C)mail, telephone, and personal interview.
• D)observation, personal interview, and experimentation on a person-by- person basis.
• E)observation, telephone, and personal interview.

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Definitions:

Simple Effect

The effect of one variable at a specific level of another variable in a factorial experiment.

Interaction Effect

In statistics, the effect that exists when two or more variables combine to affect the outcome of a dependent variable in a way that cannot be simply added.

Main Effect

In experimental design, a main effect is the direct impact of an individual independent variable on a dependent variable, ignoring the effects of other variables.

Simple Effect

The effect of one factor at a specific level of another factor in a factorial design experiment.