Compare probability designs with nonprobability designs

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Q1. Compare probability designs with nonprobability designs. Account for the kinds of sampling designs available within each of these major categories. Explain a situation in which it would be more appropriate to use probability sampling and another in which nonprobability sampling would be preferred.

Q2. Explain why control group is important in experiments.

Q3. Discuss the concepts of pre-testing and post-testing in experimental research, and provide an example of pre-testing and post-testing.

Q4. You have learned about the principles of the construction of survey questionnaires from Chapter of the textbook. A draft survey questionnaire is attached to this exercise. Identify and list the errors in the questionnaire and recommend how it could be further improved.

Reference no: EM133679633

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