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Nov 13, 2023

Identify 9 different methods of sample size determination in research?

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Nov 13, 2023
1. Power analysis: This method involves calculating the sample size required to detect a specific effect size with a desired level of statistical power.

2. Confidence interval approach: This method determines the sample size based on the desired level of confidence and the desired width of the confidence interval.

3. Precision-based approach: This method determines the sample size based on the desired level of precision or margin of error in estimating a population parameter.

4. Statistical formula: Some statistical formulas, such as those for estimating means or proportions, provide specific sample size calculations based on the desired level of confidence and the variability of the population.

5. Pilot study: Conducting a pilot study can help determine the appropriate sample size by providing preliminary data on the variability and effect size.

6. Expert opinion: In some cases, experts in the field may provide guidance on the appropriate sample size based on their experience and knowledge.

7. Budget constraints: The available budget may limit the sample size that can be feasibly obtained.

8. Time constraints: The available time for data collection may limit the sample size that can be achieved.

9. Practical considerations: Practical considerations, such as the availability of participants or resources, may influence the determination of sample size.
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