Sample interview questions: Can you discuss any experience you have in evaluating the sensitivity and specificity of assessments for different diagnostic purposes (e.g., Alzheimer’s disease, mild cognitive impairment)?
Sample answer:
Experience in Evaluating Sensitivity and Specificity of Assessments for Diagnostic Purposes
As a seasoned Psychometrician, I possess extensive experience in evaluating the sensitivity and specificity of assessments for various diagnostic purposes, including Alzheimer’s disease and mild cognitive impairment (MCI).
Quantitative Methodologies
- Area Under the Curve (AUC): Calculated using Receiver Operating Characteristic (ROC) curves, AUC measures the ability of an assessment to discriminate between individuals with and without a disorder. High AUC values indicate excellent discrimination.
- Sensitivity (True Positive Rate): Proportion of individuals with the disorder who are correctly identified by the assessment.
- Specificity (True Negative Rate): Proportion of individuals without the disorder who are correctly identified by the assessment.
Qualitative Methodologies
- Item Analysis: Examination of individual items within an assessment to determine their contribution to overall sensitivity and specificity.
- Factor Analysis: Identification of underlying constructs measured by the assessment and their relationship to diagnostic criteria.
- Clinical Judgment: Collaboration with clinicians to interpret assessment results and provide diagnostic recommendations.
Diagnostic Purposes
Alzheimer’s Dise… Read full answer