Question

In: Statistics and Probability

QUESTION 1 If a person doesn’t have a disease and they test negative for it, it...

QUESTION 1

If a person doesn’t have a disease and they test negative for it, it is an example of:

		False positive
		True Positive
		True negative
		False negative

QUESTION 2

When collecting data with multiple researchers, how a researcher views the data can affect the outcome of the study. To avoid this issue a researcher should assess:

		Sensitivity
		Homogeneity
		Inter-Rater reliability
		Content validity

QUESTION 3

The likelihood of a sick patient testing positive for a disease is:

		Specificity
		Reliability
		Predictive Validity
		Sensitivity
		None of the above

QUESTION 4

You have discovered a new tool that records the outcome of sexually transmitted diseases. A previously validated tool reports that genital herpes is 40% in Chicago. The correlation between the old tool and your tool is .5. This result indicates:

		Convergent validity
		Divergent validity
		Content validity
		Ratio

QUESTION 5

A test is developed for adolescent Hispanic mothers. The wording of the test is at a fifth grade level and in English. If the participants cannot read English, what does this affect?

		Validity
		Sampling stability
		Measurement capacity
		Inter-rater reliability

QUESTION 6

A doctor at Lakeside hospital discovered a test that was a very successful at correctly identifying when a person has the H1N1 virus. This would be a measure of:

		Sensitivity
		Specificity
		Convergent validity
		Homogeneity

QUESTION 7

If a patient does not have a disease, the probability that the test for the disease will be negative:

		Readability
		Specificity
		Sensitivity
		Negative predictive value

QUESTION 8

The Chembio test can be used to screen HIV-infected patients for hepatitis C. According to the CDC, the prevalence of HIV and HCV co-infection is approximately 25%. Use the outcome from the screening test (results below) for the Chembio HCV Rapid Test to determine the likelihood that a randomly selected HIV-infected patient will also have an HCV infection given their Chembio HCV Rapid Test returns a positive result. That is, determine P(HCV Infection | Positive Chembio HCV Test).

Round answer to nearest tenth of a percent (i.e. 79.2%).

	Positive Chembio Test Result	Negative Chembio Test Result
Hepatitis C	335	37
No Hepatitis C	15	1153

Expert Solution

orchestra answered 3 years ago

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