Question

You are evaluating a the sensitivity and specificity of a screening test. Disease Positive Disease Negative...

You are evaluating a the sensitivity and specificity of a screening test.

Disease Positive

Disease Negative

Screen Positive

20

150

Screen Negative

5

9640

Calculate the sensitivity of the screening test.

Calculate the specificity of the screening test.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
You will be assessing the appropriateness of a new screening test for Disease X. Assume a...
You will be assessing the appropriateness of a new screening test for Disease X. Assume a population of 1000 people of whom 100 have Disease X and 900 do not have Disease X to answer questions a through i using the following 2x2 table: Disease No Disease Positive screen 80 100 Negative screen 20 800 1.      Calculate the sensitivity. 2.      Interpret your sensitivity calculation and the implications for potential use of this screening test. 3.       Calculate the specificity. 4.      Interpret your specificity calculation and...
You have conducted a study on the sensitivity and specificity of a lab test for disease...
You have conducted a study on the sensitivity and specificity of a lab test for disease Y and draw the following conclusions: 125 students who have disease Y test positive 25 students who have disease Y test negative 500 students who do not have disease Y test negative 50 students who do not have disease Y test positive 1.What proportion of those who test negative does NOT have disease Y? NPV = ( ) % (round to one decimal place)...
Suppose that a screening test for breast cancer has 95% sensitivity and 90% specificity. Assume 1%...
Suppose that a screening test for breast cancer has 95% sensitivity and 90% specificity. Assume 1% of the population being screened truly has breast cancer. a. If you really do have breast cancer, what is the probability that the test says you do? b. If you really do not have breast cancer, what is the probability that the test says you do? c. The screening test is applied to a total of 15 people; 5 who really do have cancer...
True Disease Status Positive Negative Positive 25 60 Nagative 200 300 Based on these data, calculate...
True Disease Status Positive Negative Positive 25 60 Nagative 200 300 Based on these data, calculate the test's sensitivity, specificity, positive predictive value, negative predictive value, and the accuracy of the screening test, respectively. Interpret your findings. Would you recommend that this test be used to screen for COVID19 in general populations, and why or why not? show step-by-step calculations please
A screening test applied to 1500 subjects identified 250 of them as positive. On further investigation,...
A screening test applied to 1500 subjects identified 250 of them as positive. On further investigation, 110 of these were found to have the disease being tested for. In subsequent follow-up, 20 of the subjects who tested negative developed the disease within a reasonably short time. Calculate the sensitivity, specificity, and positive predictive value of the test. Explain in words what a test specificity of 75% means? Would you recommend using this screening test? Explain your answer.
Explain the problem with having false negative passengers? Specificity measures the likelihood of a test being...
Explain the problem with having false negative passengers? Specificity measures the likelihood of a test being negative given someone does not have the disease. Articulate what the specificity would tell us in context to screening passengers in an airport? Sensitivity measures the likelihood of a test being positive given someone has the disease. Articulate what the sensitivity would tell us in context to screening passengers in an airport?
In the following scenarios identify the Reality, the test, Sensitivity, Specificity, False Negative, and False Positive....
In the following scenarios identify the Reality, the test, Sensitivity, Specificity, False Negative, and False Positive. Then explain which is worse (if either) a False Negative or a False Positive. 2. A test is done to determine the sex of snails. (Consider Male to be positive and Female negative) a. Reality: b. Test: c. Sensitivity: d. Specificity: e. False Negative: f. False Positive: g. Which is worse:
Using the following 2x2 table calculate the prevalence of the disease , sensitivity of the test,...
Using the following 2x2 table calculate the prevalence of the disease , sensitivity of the test, specificity of the test , predictive value of a positive test Disease Present Absent Test Result Positive 34 20 Negative 116 9830 Prevalence Sensitivity Specificity Predictivity value of a positive test A. 99.7% B. 31% C. 63% D. 1.5% E. 59% F. 22.6% G. 25%
A screening test for a newly discovered disease is being evaluated. In order to determine the...
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 sensitivity of the test? What was the specificity of the...
Sensitivity and specificity of a screening test refer to its:         A.    reliability        ...
Sensitivity and specificity of a screening test refer to its:         A.    reliability         B.    validity         C.    yield         D.    repeatability         E.    none of the above
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT