In the 2010 U

question 25

Multiple Choice

In the 2010 U.S. Census, about ___ percent of the population identified as being from just one racial group, and just ___ percent identified as being from two or more racial groups.

• A) 55; 1.3
• B) 63; 1.7
• C) 77; 2.1
• D) 82; 2.3
• E) 97; 2.9

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Definitions:

Stimulus Discrimination

The learned ability to distinguish between similar stimuli and respond appropriately to each one.

Green Light

An expression meaning to give approval to proceed with a project or action.

Lever Pushing

A task used in experimental psychology and behavioral neuroscience to study the principles of operant conditioning by training an animal to press a lever to receive a reward.

Red Light

A signal used in traffic lights, indicating a command to stop, or metaphorically, an indication to halt an activity or process.