PPT Slide
- subjects are randomised to treatment A or B
- outcomes are recorded at the level of each and every subject (one randomised subject = one outcome)
“the unit of randomisation is the same as the unit of analysis”
- groups of subjects (aka clusters) are randomised to treatment A or B
- outcomes are recorded at the level of the subject (one randomised cluster = more than one outcome)
“the unit of randomisation is not the same as the unit of analysis”