Please enable JavaScript.

Coggle requires JavaScript to display documents.

Study Type, Screenshot 2025-04-23 at 4.24.03 PM - Coggle Diagram

- - - - Strengths
        
        Strong form of evidence, can consider rare exposures/ multiple outcome
        
        Weakness
        
        Expensive, long time
  - - - Weakness
        
        profiles of group might be different -> interpretation difficult; ecological fallacy
        
        Strengths
        
        Might be only way, quick & cheap, good for hypothesis generation
    - - Case-control Study
        
        Cases vs Controls (with no disease/outcome)
        
        Collect information about history of exposures
        
        Weakness
        
        Not a strong form of evidence; not great for rare exposures
        
        Strength
        
        Quick, cheap, can consider rare disease with a long latency period & multiple exposures (if nested -> reduce selection bias)
    - - Cross-Sectional Study
        
        How was the sample obtained? Is it representative?
        
        Any data dredging? i.e., running analyses until an estimate comes up that has a low p-value
        or deciding to ‘test’ the comparison that looks most extreme although there was no
        prior hypothesis about it.
        
        Bias e.g., confounding? selection? Information? cultural?
        
        Is this a suitable design?
- - - - very strong evidence; random allocation-> no confounding variables that need to be controlled for
    - - expensive; long time