Scientific research must:
• Use the appropriate methods.
• Involve systematic, controlled, valid, and rigorous methodologies to get valid results and conclusion
• Identify the gap in knowledge and verify what is already known.
To achieve those criteria, you must design your research well.
Your research design is your plan, structure, and strategy that you will use to conduct your research. It explains how you will answer your research problem.
The Functions of Research Design Include:
1. Clarify the methods and tasks that you need to complete your study.
2. Confirm that your objectives are valid and your methods are adequate to get accurate results.
Your research design will show:
1. The method of your study design
2. Your study population
3. Your sample size and the person who will collect
4. Your data collection method and the person who will collect the data.
Your research design must include:
1. Your study design
2. The measurement procedures you will use
3. Your sampling strategy
4. Your strategy for data analysis
5. The time-frame for your research.
When you select a research design, you must confirm that it is:
2. Workable, and
• Sampling is the process of taking representative samples from the entire population.
• Since the accuracy of your results relies on your sample selection method, you must select your samples with care.
• A good sampling design helps you to minimize the gap between your selected samples and the whole population.
• To get high confidence in the accuracy of your result, your samples must all be representative of the population as well as unbiased.
• Sampling in quantitative research aims to draw inferences about the population from which samples are selected.
• Sampling in qualitative research aims to gather deep information.
When you select your samples, you must:
1. Avoid bias.
2. Attain the maximum precision.
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