Comlex Level 1 Exam Script Comprehensive Study Guide

COMLEX LEVEL 1 EXAM SCRIPT
COMPREHENSIVE STUDY GUIDE

●● Specificity
Answer: TN / (TN + FP)


●● Positive predictive value
Answer: TP / (TP + FP)


●● Negative predictive value
Answer: TN / (TN + FN)


●● Accuracy
Answer: (TP + TN) / total population


●● Incidence
Answer: New cases in a time period


●● Prevalence
Answer: Total existing cases


●● Relative risk

,Answer: Incidence exposed / incidence unexposed


●● Odds ratio
Answer: Odds exposed / odds unexposed


●● Absolute risk reduction
Answer: Control event rate - experimental event rate


●● Relative risk reduction
Answer: ARR / control event rate


●● Number needed to treat
Answer: 1 / ARR


●● Number needed to harm
Answer: 1 / absolute risk increase


●● Attributable risk
Answer: Risk exposed - risk unexposed


●● High sensitivity test
Answer: Good for ruling OUT disease

, ●● SNOUT
Answer: Sensitive test Negative rules OUT


●● High specificity test
Answer: Good for ruling IN disease


●● SPIN
Answer: Specific test Positive rules IN


●● High sensitivity characteristic
Answer: Few false negatives


●● High specificity characteristic
Answer: Few false positives


●● Increasing cutoff value
Answer: Increases specificity and decreases sensitivity


●● Decreasing cutoff value
Answer: Increases sensitivity and decreases specificity