The answer is "token economy".
A token economy is an arrangement of possibility of administration in light of the methodical fortification of target conduct. The reinforcers are images or "tokens" that can be traded for different reinforcers. Marbles are being utilized as tokens that would then be able to exchanged for a coveted protest—the computer game.
The president may serve a maximum of 2 terms.
Founded in 1900 by Thomas Edison, Willis R. Whitney, and Charles Steinmetz, this lab defined industrial research for years to come.
