Social & Preventive Medicine Predictive value indicating positive test in a screening modality is calculated by: A TP/TP+FP*100 B TN/TN+FN *100 C TP/TP+FN*100 D TN/FP+TN*100 💡 Explanation Predictive value indicating positive test in a screening modality is calculated by: ✓ Correct Answer: A. TP/TP+FP*100