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Research design and methodology

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A pro-life group wanted to test the effectiveness of an antiabortion commercial. Two random samples, each of 250 respondents, were recruited in Atlanta, Georgia. One group was shown the antiabortion commercial. Then, attitudes toward abortion were measured for respondents in both groups.

1. What were the independent and dependent variables in this experiment?
2. What type of research design was used?
3. What are the potential threats to internal and external validity in this experiment?

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Solution Summary

This posting looks at a hypothetical situation, and assess what are the independent and dependent variables, what methodology was used in the research, as well as assesses what are the internal and external validity of the design.

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What were the independent and dependent variables in this experiment?

The independent variable is controlled by the experimenter - so in this case it would be the anti-abortion commercials

The dependent variable is the attitudes of ...

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