A Screening Test for a Newly Discovered Disease Is Being

question 12

Multiple Choice

A screening test for a newly discovered disease is being evaluated. In order to determine the effectiveness of the new test, it was administered to 900 workers. 150 of the individuals diagnosed with the disease tested positive. A negative test finding occurred in 60 people who had the disease. A total of 50 persons not diseased tested positive for it. Assume the prior probability is not known.
-What is the LR- of the test?

• A) 9.9
• B) 0.2
• C) 0.3
• D) 0.4
• E) 9.1

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Definitions:

New Immigrants

Refers to the wave of immigrants that came to the United States from the 1880s to the early 20th century, many from Southern and Eastern Europe.

Southern Europe

A region of Europe that includes countries such as Italy, Spain, Greece, and Portugal, known for its distinct culture and history.

Eastern Europe

A region that lies primarily to the east of Europe and consists of countries that vary widely in cultural, economic, and historical contexts.

Freedom of Contract

The legal principle that allows individuals to enter into and enforce contracts freely, without undue interference, reflecting a core aspect of market economies and personal autonomy.