Researchers Are Developing an Enzyme-Linked Immunosorbent Assay Test for Diagnosing

question 49

Multiple Choice

Researchers are developing an enzyme-linked immunosorbent assay test for diagnosing rheumatoid arthritis.  The test is designed to detect the presence of serum antibodies against citrullinated proteins.  Two test populations with a differing prevalence of rheumatoid arthritis are selected.  The researchers plan to assess the test's performance in the 2 populations by comparing a number of diagnostic test parameters.  Which of the following performance measures is most likely to be different between the 2 test populations?

• A)Negative likelihood ratio
• B)Positive likelihood ratio
• C)Positive predictive value
• D)Sensitivity
• E)Specificity

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Definitions:

FIFO Firms

FIFO (First-In, First-Out) firms refer to businesses that use the FIFO accounting method to manage inventory, implying that the first items purchased are the first ones sold.

Realized Holding Gains

Gains that are recognized when assets such as investments are actually sold for more than their cost, reflecting actual rather than potential profit.

Inventory Costs

Inventory costs include all expenses related to acquiring, holding, and managing inventory, including purchase costs, storage, and handling.