When Is the Reinforcer Given in a Variable-Ratio Schedule

question 129

Multiple Choice

When is the reinforcer given in a variable-ratio schedule

• A) after a fixed number of nonreinforced responses 
• B) for the first response that occurs after a variable amount of time has elapsed 
• C) for the first response that occurs after a fixed amount of time has elapsed 
• D) after a variable number of nonreinforced responses

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Definitions:

Subsurface Material

Refers to the layer of soil, rock, and other materials that lie beneath the surface of the Earth.

Groundwater

Water found below the surface of the earth, existing within spaces in soil and cracks within rock structures.

Sand and Gravel

Loose granular materials consisting of rock fragments. Sand particles are smaller than gravel particles.

Groundwater Flow

The movement of water through the pore spaces and fractures in underground soil and rock layers.