Examlex
From studies of the rotations of galaxies and dynamics of clusters, we now think that about
of the mass of the universe is composed of dark matter.
Reinforced Behavior
Behavior that is strengthened or made more likely to occur in the future due to the consequence of a reinforcement.
Different Situation
refers to a divergent or distinct condition, circumstance, or context from what is considered normal or usual.
Primary Reinforcer
A stimulus that is naturally rewarding and satisfying, and requires no learning to become desirable, such as food or water.
Innately Satisfying
Actions or objects that are inherently pleasurable and do not require learning to be enjoyed.
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