5) A study to determine the sensitivity and specificity of a new test for celiac

Question

5) A study to determine the sensitivity and specificity of a new test for celiac disease is conducted on 7642 people. Studies have shown that celiac disease occurs at a rate of 1.32%. Your sample has the same prevalence of celiac disease. You find that 99 people with celiac disease tested positive with the new test. You also have a total of 7495 negative test results in your study. CALCULATE THE SPECIFICITY of this test.

Question 5 options:

A) 67.35%

B) 99.97%

C) 98.02%

D) 99.39%

E) 99.36%

Question 6) A study to determine the sensitivity and specificity of a new test for diabetes is conducted on 576 people. The national prevalence of diabetes in adults is 9.7%. Your sample has the same prevalence of diabetes. You find that 51 people with diabetes tested positive with the new test. You also have a total of 83 positive test results in your study. CALCULATE THE SPECIFICITY of this test.

Question 6 options:

A) 93.85%

B) 91.07%

C) 90.28%

D) 98.99%

E) 61.45%

Question 7) A study to determine the sensitivity and specificity of a new test for macular degeneration is conducted on 2430 people. Macular degeneration occurs at a rate of 16.72%. Your sample has the same prevalence of macular degeneration. You find that 377 people with macular degeneration tested positive with the new test. You also have a total of 561 positive test results in your study. CALCULATE THE POSITIVE PREDICTIVE VALUE of this test under these circumstances.

Question 7 options:

A) 98.45%

B) 92.86%

C) 23.09%

D) 67.20%

E) 83.29%

Question 8) A study to determine the sensitivity and specificity of a new test for celiac disease is conducted on 7642 people. Studies have shown that celiac disease occurs at a rate of 1.32%. Your sample has the same prevalence of celiac disease. You find that 99 people with celiac disease tested positive with the new test. You also have a total of 7495 negative test results in your study. CALCULATE THE POSITIVE PREDICTIVE VALUE of this test under these circumstances.

Question 8 options:

A) 99.97%

B) 98.02%

C) 68.71%

D) 67.35%

E) 99.36%

Explanation / Answer

Answer

Question.No.6

option A is correct answer i.e

93.85%

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