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Which Design Is Best? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

This article discusses four study designs (trial, cohort study, case-control study, cross-sectional study) in epidemiology and compares their strengths and weaknesses. It also explores factors such as time consumption, scientific soundness, and suitability for studying rare diseases.

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Which Design Is Best? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

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  1. Which Design Is Best? Which Design Is Best? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  2. - Study Design Trial E O +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Time Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  3. - Study Design Cohort Study E O +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Time Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  4. - Study Design Case-Control Study O E +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Time Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  5. - Study Design Cross-Sectional Study E O +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ Time Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  6. - - - - 4 Study Designs O Trial E +++++++++++++++++++++++++++++++++++++++++++++++++++++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++ O Cohort Study E +++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++++ Case-Control Study ++++++++++++++++++++++++++++++++++++++++++++++++++++ ++++++++++++++++++++++++++++++++++++++++++++++++++++ E O Cross-Sectional Study +++++++++++++++++++++++++++ ++++++++++++++++++++++++ +++++++++++++++++++++++++ +++++++++++++++++++++++ E O Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  7. Which Design Is Best? 4 Study Designs Case-Control Study Cohort Study Cross-Sectional Study Trial Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  8. Stronger Weaker Which Design Is Best? 4 Study Designs 1st 2nd 3rd 4th Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  9. Shortest Time Longest Time Which Design Is Best? 4 Study Designs 1st Cross-Sectional Study 2nd Case-Control Study 3rd Cohort Study 3rd Trial Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  10. Least Expensive Most Expensive Which Design Is Best? 4 Study Designs 1st Cross-Sectional Study 2nd Case-Control Study 3rd Cohort Study 4th Trial Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  11. Most Accurate Least Accurate Which Design Is Best? 4 Study Designs 1st Trial 2nd Cohort Study 3rd Case-Control Study 4th Cross-Sectional Study Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  12. Most Similar Least Similar Which Design Is Best? 4 Study Designs 1st Trial 2nd Cohort Study 2nd Case-Control Study 2nd Cross-Sectional Study Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  13. Most Sound Least Sound Which Design Is Best? 4 Study Designs 1st Trial 2nd Cohort Study 3rd Case-Control Study 4th Cross-Sectional Study Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  14. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Cohort Study 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Epi Team Challenge Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  15. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial Case- Control Cohort Cross- Sectional Controlled Trial 1 5 Cohort Study 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Epi Team Challenge Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  16. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Cohort Study 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Epi Team Challenge Fastest Which study design is the fastest? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  17. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Time Consuming Trial 1 5 Cohort Study Time Consuming 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Fastest Which study designs are the most time consuming? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  18. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Cohort Study 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Most Scientifically Sound Time Consuming Time Consuming Fastest Which study design is the most scientifically sound? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  19. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Cohort Study 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Most Scientifically Sound Time Consuming Time Consuming Can Study Rare Diseases Fastest Which study design is best for studying rare diseases? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  20. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Cohort Study 6 2 Case-Control Study Possible Time-Order Confusion 3 7 Cross-Sectional Study Possible Time-Order Confusion 8 4 Most Scientifically Sound Time Consuming Time Consuming Can Study Rare Diseases Fastest Which study designs do not identify the time order of exposure and disease? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  21. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Cohort Study 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Time Consuming Most Scientifically Sound Time Consuming Possible Time-Order Confusion Can Study Rare Diseases Possible Time-Order Confusion Fastest Least Confidence in Findings Which study design gives the least confidence in findings? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  22. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Cohort Study 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Time Consuming Most Scientifically Sound Best Measure of Exposure Time Consuming Can Study Rare Diseases Possible Time-Order Confusion Possible Time-Order Confusion Fastest Least Confidence in Findings Which study design provides the best measure of exposure? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  23. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Cohort Study 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Time Consuming Most Scientifically Sound Best Measure of Exposure Most Accurate Observational Study Time Consuming Possible Time-Order Confusion Can Study Rare Diseases Possible Time-Order Confusion Fastest Least Confidence in Findings Which study design is the most accurate observational study? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  24. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Cohort Study 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Time Consuming Most Scientifically Sound Best Measure of Exposure Most Accurate Observational Study Time Consuming Possible Time-Order Confusion Can Study Rare Diseases Possible Time-Order Confusion Fastest Least Confidence in Findings Least Expensive Which study design is the least expensive? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  25. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Cohort Study 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Time Consuming Most Scientifically Sound Unethical for Harmful Exposures Best Measure of Exposure Time Consuming Most Accurate Observational Study Possible Time-Order Confusion Can Study Rare Diseases Fastest Possible Time-Order Confusion Least Confidence in Findings Least Expensive Which study design would be unethical for harmful exposures? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  26. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Cohort Study 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Time Consuming Most Scientifically Sound Unethical for Harmful exposures Best Measure of Exposure Time Consuming Most Accurate Observational Study Good Measure of Exposure Possible Time-Order Confusion Can Study Rare Diseases Fastest Possible Time-Order Confusion Least Confidence in Findings Least Expensive Which study design provides a good measure of exposure? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  27. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Most Expensive Cohort Study Most Expensive 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Most Scientifically Sound Time Consuming Unethical for Harmful exposures Best Measure of Exposure Time Consuming Most Accurate Observational Study Good Measure of Exposure Possible Time-Order Confusion Can Study Rare Diseases Fastest Possible Time-Order Confusion Least Expensive Least Confidence in Findings Which study designs are the most expensive? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  28. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Most Expensive Cohort Study Most Expensive 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Most Scientifically Sound Time Consuming Unethical for Harmful exposures Best Measure of Exposure Time Consuming Most Accurate Observational Study Good Measure of Exposure Can Study Rare Diseases Possible Time-Order Confusion Relatively Less Expensive and Relatively Fast Possible Time-Order Confusion Fastest Least Confidence in Findings Least Expensive Which study design is relatively less expensive and relatively fast? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  29. Epi Team Challenge Study Designs Main Strengths Main Weaknesses Trial 1 5 Most Expensive Cohort Study Most Expensive 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Time Consuming Most Scientifically Sound Unethical for Harmful exposures Best Measure of Exposure Time Consuming Most Accurate Observational Study Good Measure of Exposure Can Study Rare Diseases Possible Time-Order Confusion Possible Error in Recalling Past Exposures Relatively Less Expensive and Relatively Fast Possible Time-Order Confusion Fastest Least Confidence in Findings Least Expensive Which study design creates thepossibility of error in recalling past exposures? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  30. Study Designs Main Strengths Main Weaknesses Trial 1 5 Most Expensive Cohort Study Most Expensive 6 2 Case-Control Study 3 7 Cross-Sectional Study 8 4 Which Design Is Best? Time Consuming Most Scientifically Sound Unethical for Harmful exposures Best Measure of Exposure Time Consuming Most Accurate Observational Study Good Measure of Exposure It depends …. Possible Time-Order Confusion Can Study Rare Diseases Relatively Less Expensive and Relatively Fast Possible Error in Recalling Exposures Fastest Possible Time-Order Confusion Least Expensive Least Confidence in Findings Which Design Is Best? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  31. It depends on …. • Regulations • Time urgency • How much is known about the association • Money • Whether the exposure is believed to be beneficial Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  32. An Example Which Design Is Best? Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  33. - Which Design Is Best? What is your personal favorite? Why? 4 Study Designs Case-Control Study Cohort Study Cross-Sectional Study Trial Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

  34. Which Design Is Best? Investigation 2-8 has ended. Intro to Epidemiology - Investigation 2-8: Which Design Is Best?

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