Skip to Main Content
University of Texas University of Texas Libraries

Medicine

Study Types

Study Types Resources

Study Type Guidelines

Glossary Terms

What are the five main study types in medical writing?

  • Randomized controlled trials (RCTs) provide reliable answers as to how how effective a treatment is by comparing its effects with no treatment or a different form of treatment by randomly assigning participants to one of two or more groups.
  • Cohort studies involve "two (or more) groups that are exposed to different things are compared with each other."
  • Case-control studies "compare people who have a certain medical condition with people who do not have the medical condition, but who are otherwise as similar as possible."
  • Cross-sectional studies involve a random sample of people that are surveyed, and this is usually a quick and inexpensive type of study.
  • Qualitative studies are "based on information collected by talking to people who have a particular medical condition and people close to them;" written documents and/or observations can be used as well." 1

 

1. InformedHealth.org [Internet]. Cologne, Germany: Institute for Quality and Efficiency in Health Care (IQWiG); 2006-. What types of studies are there? 2016 Jun 15 [Updated 2016 Sep 8]. Available from: https://www.ncbi.nlm.nih.gov/books/NBK390304/

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 2.0 Generic License.