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Author Question: What is the gold standard experimental study in medicine for determining causal relationships? ... (Read 98 times)

kwoodring

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on: Jun 22, 2018
What is the gold standard experimental study in medicine for determining causal relationships?
 
  What will be an ideal response?

Question 2

Are cross-sectional and longitudinal studies good for establishing causality? Explain.
 
  What will be an ideal response?


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joshbk44

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Reply #1 on: Jun 22, 2018
Answer to Question 1

The gold standard experimental study in medicine for determining causal relationships is called a randomized controlled trial because participants are randomly assigned to groups and then the group that receives the intervention being tested (e.g., exercise) is compared to control groups. A randomized controlled trial has high internal validity because it is good at discerning causal relationships.

Answer to Question 2

Cross-sectional studies are good for establishing that A and B are correlated, for example that sedentary behavior and heart disease are related. Longitudinal studies are good for establishing that A precedes B in time. For example, that the participants in the study were sedentary before they developed heart disease. Good longitudinal (prospective) observational studies can even statistically rule out other potential C variables.


kwoodring

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Reply 2 on: Jun 22, 2018
YES! Correct, THANKS for helping me on my review

essyface1

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Reply 3 on: Yesterday
Wow, this really help

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