Quotas on Immigrants from Particular Countries Were Established

question 9

Multiple Choice

Quotas on immigrants from particular countries were established:

• A)In the mid 1800s.
• B)In the 1890s.
• C)In 1917.
• D)In 1922

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Definitions:

FR-15 Schedule

A fixed-ratio schedule of reinforcement where a response is reinforced only after it has been produced 15 times.

Fixed-Ratio

A reinforcement schedule where a response is reinforced only after a specified number of responses.

Variable-Ratio

A reinforcement schedule where a response is reinforced after an unpredictable number of responses, leading to high and steady response rates.

Fixed-Interval

A schedule of reinforcement where rewards are delivered at constant intervals of time, contingent on the first response after the interval has passed.