A Screening Test for a Newly Discovered Disease Is Being

question 7

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 was the specificity of the test?

• A) 0.75
• B) 0.71
• C) 0.88
• D) 0.93
• E) 0.91

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Definitions:

CPI Rose

Refers to an increase in the Consumer Price Index, indicating that the average prices of consumer goods and services have gone up, often a measure of inflation.

$7 Per Hour

A specified wage rate where an individual or worker is paid seven dollars for each hour worked.

Purchasing Power

The economic value of a currency depicted by the number of goods or services obtainable by a single monetary unit.

US$ Per C$

The exchange rate that defines how much one can buy in US dollars (US$) with one Canadian dollar (C$).