Sample interview questions: Can you discuss your experience in evaluating the reliability and validity of assessments for different types of cognitive impairments?
Sample answer:
Throughout my career as a psychometrician, I have extensively evaluated the reliability and validity of assessments for various types of cognitive impairments. This experience has equipped me with a comprehensive understanding of psychometric principles and methodologies.
Reliability Evaluation:
- Test-Retest Reliability: I have conducted test-retest studies to assess the consistency of assessment scores over time. This involves administering the same assessment to participants at multiple time points and calculating the correlation between the scores.
- Internal Consistency: I have employed statistical techniques such as Cronbach’s alpha and composite reliability to evaluate the internal consistency of assessments. This measure assesses the extent to which items within an assessment measure the same construct.
- Inter-Rater Reliability: For assessments involving subjective judgments, I have established inter-rater reliability procedures. This ensures that different raters provide consistent scoring and interpretations.
Validity Evaluation:
- Content Validity: I have reviewed assessments to ensure that they accurately represent the cognitive domains they purport to measure. This involves examining the alignment of assessment items with expert consensus or relevant literature.
- Criterion Validity: I have conducted studies to compare the results of assessments to established criteria. For example, I have correlated assessment scores with clinical diagnoses or performance on oth… Read full answer