In a certain experiment, reinforcement is contingent upon each response being separated by at least a certain period of time. This sounds like a schedule.

DRL

Explanation:

Based on the information provided within the question it can be said that this sounds like a Differential reinforcement of low rates of behavior (DRL) schedule. This is a schedule created by Ferster and Skinner in 1957 which they describe as being a schedule in which a certain amount of time must pass in between two responses before reinforcement is introduced to the individuals.

the united states constitution is the supreme law of the united states. the constitution, originally comprising seven articles, delineates the national frame of government. its first three articles embody the doctrine of the separation of powers, whereby the federal government is divided into three branches: the legislative, consisting of the bicameral congress; the executive, consisting of the president; and the judicial, consisting of the supreme court and other federal courts. articles four, five and six embody concepts of federalism, describing the rights and responsibilities of state governments, the states in relationship to the federal government, and the shared process of constitutional amendment. article seven establishes the procedure subsequently used by the thirteen states to ratify it. it is regarded as the oldest written and codified national constitution in force.

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explanation: