Study Design
The unit of randomization in this study
What is the building?
Mean participation rate in CP@clinic
What is 39%?
The unit of independence
What is the cluster?
This American author wrote 'The Raven'
Who is Edgar Allen Poe?
Type of randomized design created by matching buildings before randomization
What is paired randomization?
Percentage of participants who attended at least 3 sessions
What is over 80%?
The main methodological reason to choose a cluster RCT instead of individual randomization
What is prevention of contamination?
Benedict Cumberbatch famously mispronounces this birds name
What is penguin (peng-wing)?
What is GEE?
Type of data used to measure outcomes
What are administrative health data?
Increasing this reduces the impact of clustering most effectively
What is the number of clusters?
This is the fastest runner in the in the bird world
What is an ostrich?
Primary outcome of the trial
What is emergency department visits via ambulance?
Use of administrative data reduces this compared with self-report
What is recall bias?
What can introduce bias in a cluster RCT?
Baseline differences between clusters
"Stupid Canadian wolf bird"
What is a Loon?
The analysis principle used regardless of program attendance
What is intention-to-treat?
Broader health system role the authors suggest CP@clinic serves
What is an upstream preventive approach?
Biggest statistical threat when too few clusters are randomized
What is a Type I error?
Birds moving in coordinated patterns most resemble this statistical concept
What are correlated outcomes (or ICC)?