What are the main challenges in sampling methods?

What are the main challenges in sampling methods?

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 we minimize selection bias?

You can minimize selection bias by using random sampling techniques and ensuring diverse participant inclusion.

What about sample size determination?

Determining the right sample size is crucial; too small a sample can lead to unreliable results, while too large can waste resources.

Are there specific methods to determine sample size?

Yes, methods like power analysis and using confidence intervals can help in determining an appropriate sample size.