Evidence-Based Practice / Unit 6 EBP 0758 short lesson, about 20 seconds
Only Randomisation Establishes Cause
Captions available
The idea
A randomized controlled trial is the only design that offers the opportunity to establish a cause-and-effect relationship between an intervention and an outcome.
In practice
Participants allocated by chance, so that the groups differ in the intervention and not systematically in anything else.
Where people slip
This is the strongest claim in the unit and it is about opportunity. A poorly conducted trial establishes nothing.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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