Use the Following to Answer Questions

question 6

Multiple Choice

Use the following to answer questions
Scenario I
A psychologist interested in studying visual perception manipulates the brightness of a light in the imperceptible to very dim range.Each level of brightness (measured in lumens) is studied for 10 trials,and on each trial participants are asked if they can detect the light.Figure 4.1 shows hypothetical data from one participant.
Figure 4.1
-(Scenario I) This scenario is BEST described as research in the area of:

• A)psychometrics.
• B)perceptual constancy.
• C)signal detection.
• D)psychophysics.

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Definitions:

Embargo Act

Legislation enacted by the U.S. Congress in 1807 prohibiting American ships from trading in all foreign ports, in response to British and French restrictions on U.S. trade.

Revolutionary War

Also known as the American Revolution, a conflict between thirteen American colonies and British rule from 1775 to 1783 that led to the colonies' independence.

Townshend Acts

1767 parliamentary measures (named for the chancellor of the Exchequer) that taxed tea and other commodities and established a Board of Customs Commissioners and colonial vice-admiralty courts.

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