Poor Clusters

question 111

Multiple Choice

Poor clusters

• A)contain more than 1000 stars and are found in the halo of the galaxy.
• B)contain lots of young stars and are found in the disk of a spiral galaxy.
• C)contain more than 1000 galaxies and are generally elliptical in shape.
• D)contain fewer than 1000 galaxies and tend to be irregularly shaped.
• E)are found in the nucleus of the galaxy.

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Definitions:

Extinction

In psychology, it refers to the gradual weakening and eventual disappearance of a conditioned response.

Negative Punishment

A behavioral modification technique involving the removal of a desirable stimulus to decrease the likelihood of a behavior recurring.

Negative Reinforcement

A behavior reinforcement strategy where the removal of an undesirable or aversive stimulus strengthens or increases the likelihood of a behavior.

Positive Reinforcement

The process of increasing the probability of a behavior by following it with a desirable event or outcome.