They also are identified with designs that are nonexperimental in the sense that the investigator is not deliberately manipulating some variable to see its possible effects on the system being studied.
They are identified with designs that aren't manipulating variables to see what happens.
The variables are all manipulated so we can see what happens.
A kid ate some berries
The people are walking down the street on a summer day.
No types of changes occur and we need not update our risk assessments.
A young oriental female is wearing clothes and sitting outside.
People are out in the rain.
There are no blue ballons near the bench.