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What is PICO?
P = Population, Problem, Process
The population doesn't need to be human
I = Intervention, Inquiry, Investigation, Improvement
C = Comparison
Current practice or opposing viewpoints
O = Outcomes
Measuring what worked best
The Role of the 5 Ws
Who, What, When, Where, Why (and How)
Researchers in most fields are looking for one of two things:
- A cause for a problem (Why) or
- a solution to a problem (How).
The Why or the How then becomes the I element of the PICO formula.
The P element of the PICO formula is typically the Who or the What