Psychometric Exam Questions and
Answers
Cost-effectiveness validity - ANSWERS-Cost of deriving information with an assessment
instrument relative to the contribution of that information to a clinical judgment. Is it worth it?
Diagnostic efficiency - ANSWERS-Ability of a diagnostic test to correctly classify a group of
individuals into diagnostic groups. Can we actually diagnose people?
Sensitivity - ANSWERS-AKA true positive rate. The probability that a person known to have a
particular disorder will test positive for that disorder on the measure in question. Will people
who have something test positive for it
Specificity - ANSWERS-True negative. The probability that an individual without a psychiatric
disorder will test negative for that disorder. Will something that someone doesn't have test
negative for it
Prevalence (base rate) - ANSWERS-The frequency with which a given behavior or symptom
occurs in a given group of individuals or patients. AKA base rate. Likelihood these things would
occur in these people
Local norms - ANSWERS-The frequency with which a given behavior or symptom occurs in a
specific setting. likelihood this thing would occur in this place
How to calculate Sensitivity - ANSWERS-[A / (A + C) X 100]
How to calculate Specificity - ANSWERS-[D / (D + B) X 100]
Answers
Cost-effectiveness validity - ANSWERS-Cost of deriving information with an assessment
instrument relative to the contribution of that information to a clinical judgment. Is it worth it?
Diagnostic efficiency - ANSWERS-Ability of a diagnostic test to correctly classify a group of
individuals into diagnostic groups. Can we actually diagnose people?
Sensitivity - ANSWERS-AKA true positive rate. The probability that a person known to have a
particular disorder will test positive for that disorder on the measure in question. Will people
who have something test positive for it
Specificity - ANSWERS-True negative. The probability that an individual without a psychiatric
disorder will test negative for that disorder. Will something that someone doesn't have test
negative for it
Prevalence (base rate) - ANSWERS-The frequency with which a given behavior or symptom
occurs in a given group of individuals or patients. AKA base rate. Likelihood these things would
occur in these people
Local norms - ANSWERS-The frequency with which a given behavior or symptom occurs in a
specific setting. likelihood this thing would occur in this place
How to calculate Sensitivity - ANSWERS-[A / (A + C) X 100]
How to calculate Specificity - ANSWERS-[D / (D + B) X 100]
