Question

a low sensitivity test is a test that has very few false negatives.
true
false
question 2 (mandatory) (10 points)
one of the problems with reference ranges is that they are based on a population that is assumed to be healthy.
true
false

Explanation:

Question 1

Sensitivity of a test is the probability of testing positive given that the person has the condition. A test with high sensitivity has few false negatives (people with the condition testing negative). A low sensitivity test would have more false negatives. So the statement "A low sensitivity test is a test that has very few false negatives" is false.

Reference ranges are typically established using a population assumed to be healthy. However, this is a problem because there can be variations in what "healthy" means, and some people with early or subtle conditions might be in the reference population, or the population might not fully represent all healthy individuals (e.g., different age, gender, ethnic groups might have different normal ranges not fully captured). So the statement "One of the problems with reference ranges is that they are based on a population that is assumed to be healthy" is true.

Answer:

False

Question 2