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BIO 201 Objective Question
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Question

When evaluating diagnostic tests, what does the Positive Likelihood Ratio ($LR+$) measure?
Options
A How many times more likely a positive test result is in a diseased individual compared to a non-diseased individual.
Correct Answer
B The probability that a patient with a negative test result is truly free of disease.
C The overall percentage of correctly classified subjects in a parallel trial.
D The threshold sensitivity value where specificity drops below 50%.
Correct Answer

Option A is the correct answer.

Detailed Explanation

$LR+$ is calculated as $\text{Sensitivity} / (1 - \text{Specificity})$, quantifying how much a positive result increases the odds of disease.

Hint

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Question Info

Course: BIO 201
Type: Objective
Difficulty: Not specified
Question 105 of 285
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