Determine Whether the Study Is an Observational Study or an Experiment

question 15

Multiple Choice

Determine whether the study is an observational study or an experiment.
-A researcher obtained a random sample of 100 smokers and a random sample of 100 nonsmokers. After interviewing all 200 participants in the study, the researcher compared the rate of depression among the
Smokers with the rate of depression among nonsmokers.

• A)observational study
• B)experiment

Understand various research methods and their application in PR campaigns.

Identify the steps and components involved in the PR campaign process.

Distinguish between quantitative and qualitative research methods.

Recognize the importance of initial research in understanding and setting PR campaign objectives.

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Definitions:

Populations

The entire group of individuals or items of interest from which samples may be drawn for statistical analysis.

Mean

The mean value of a group of numbers, found by dividing the aggregate of the numbers by how many numbers there are.

Difference

The result of subtracting one quantity from another, highlighting disparities or changes between them.

Random Samples

Selections made in such a way that each member of a population has an equal chance of being included in the sample.