What points should be taken into consideration when developing a sample design for a research project?

When developing a sample design for a research project, it's essential to consider the target population and ensure it accurately represents the larger group to avoid bias. Additionally, determine the appropriate sampling method (e.g., random, stratified, or cluster sampling) that aligns with the research goals and available resources. Consider the sample size, as it should be large enough to provide reliable results while balancing feasibility and cost. Lastly, account for potential non-response or attrition rates and plan strategies to mitigate these issues.