To avoid mistakes and correct

Sampling is taking a section of the entire group you are studying and only studying them. Its important to be able to make studies at levels that are practible, but still have enough info to make them correct.

Some common methods used in conducting research include surveys, experiments, interviews, case studies, and observations. These methods allow researchers to collect data, analyze it, and draw conclusions based on the findings. Researchers often choose the method that best aligns with their research questions and objectives.

Clinical Case Studies was created in 2002.

Case studies are educational and informative. Many intellectuals read case studies to get insight about studies conducted around the world.