Define behavior – page 08
Check your definition to see if it can pass the Stranger Test.
The Stranger Test is passed when a stranger can read the behavior definition and spot the behavior every time it occurs without any help.
The best Stranger Test is having two or more observers simultaneously observe the student and independently record data. When the data is compared and there is 80% or better agreement, the Stranger Test is passed.
For more information please consult with a Behavior Analyst with board certification, or someone with advanced training in data reliability, inter-observer agreement, or inter-observer reliability.
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