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Review Question - QID 213665

Measures of Association Precision and Accuracy Accuracy QID: 213665 (M1.OMB.19.1)
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QID 213665 (Type "213665" in App Search)
A researcher is studying a novel biomarker that she believes will help in the detection of hepatitis in patients. Specifically, she believes that this new biomarker is present in saliva and serves as a good surrogate for alanine aminotransferase. Therefore, this biomarker would allow for point of care testing without needing to wait for a blood test. She decides to conduct a study by using a sample with a known concentration of 100 IU/L. She splits the sample into 5 aliquots and runs the new test on each sample. The results from the 5 replicates are as follows:

Test 1 - Measured: 116 IU/L, Actual: 100 IU/L
Test 2 - Measured: 134 IU/L, Actual: 100 IU/L
Test 3 - Measured: 66 IU/L, Actual: 100 IU/L
Test 4 - Measured: 84 IU/L, Actual: 100 IU/L
Test 5 - Measured: 100 IU/L, Actual: 100 IU/L

Which of the following best describes the performance of this test?
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