The negative predictive value of the Ely test based on the results below is 20%. Ely Test result Decreased dynamic ROM in swing Present (Abnormal) Absent (Normal) Positive TP 53 FP 5 Negative FN 37 TN 9 TP+FN 90 FP+TN 14 True False Question 5 1 pts Low prevalence of an injury would mean there are a high proportion of true positives of a diagnostic test. True False
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NPV is the proportion of true negatives (TN) among the test negatives (TN + FN). NPV = \frac{TN}{TN + FN} We are given that NPV is 20%, and we know that TP + FN = 90 and FP + TN = 14. 0.20 = \frac{TN}{TN + FN} Now, we need to find the values of TN and Show more…
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