What is the importance of sample size in research quality?

What is the importance of sample size in research quality?

Sample size is crucial because it affects the reliability and validity of research findings. A larger sample size generally leads to more accurate results.

How does a small sample size impact the results?

A small sample size can lead to higher variability and less confidence in the results, increasing the risk of Type I and Type II errors.

What is considered an adequate sample size?

An adequate sample size depends on the research design, population, and desired power level, but generally, larger is better.

Can you give an example of a study with a poor sample size?

Sure! A study with only 10 participants may not accurately represent the population, leading to misleading conclusions.

What methods can be used to determine the right sample size?

Methods include power analysis, pilot studies, and consulting statistical guidelines to ensure the sample size is sufficient.