But this is  Any group selected on the basis of scores on mental tests will be composed disproportionately of people who score high on mental tests.
They selected group members based on their mental test scores.
The groups composition will not be affected by the mental tests administered.
The tow truck crashed through the building.
The man is wearing green.
I firmly feel that it is right to spend millions of dollars to cut five minutes off travel time for just a few people.
A sports player is pushing an object outside.
The woman is outside picking stones.
A scene from a rodeo.