What are the main challenges in sampling for research?

What are the main challenges in sampling for research?

Some key challenges include selection bias, sample size determination, and ensuring representativeness.

Can you explain selection bias?

Selection bias occurs when the sample is not representative of the population, leading to skewed results.

How can I avoid selection bias in my study?

You can avoid selection bias by using random sampling methods and ensuring diverse participant inclusion.

What about sample size determination?

Sample size determination is crucial; too small a sample can lead to unreliable results, while too large can waste resources.

Are there tools to help with sample size calculation?

Yes, there are various statistical software and online calculators that can assist with sample size determination.