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Advanced Placement (AP), 03.05.2020 12:59 jaidxxxz

A researcher installs a third brake light in 300 taxicabs and leaves 100 taxis without the extra brake light to create an
experimental and control group. Drivers are randomly assigned to both groups and accident data is collected on all
vehicles over a ten-month period. The researcher finds that accidents are greatly reduced when vehicles have a third
brake light.
The researcher MOST likely subscribes to which theoretical perspective?

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