Buyers don't pay a dime for the agent. It is the seller's agent who splits commission with buyer's agent. And no, you dont pay any premium for their qualification.
Lastly, you would want to ask your agent about his transaction histories if you want to interview but I wouldnt. You would want to find a person who can click with you, not a person who passes your test. It all varies what buyer wants from the agent.
My first car, gone but not forgotten.
1995 Taurus Wagon
Emerald Green Exterior/Green Interior/4 Speed AT/ABS Brakes/Cassette Player/Dual Airbags/Alloy Wheels/Auto locks/Auto Windows/Sunroof Delete/Chrome model designation