Sample interview questions: How do you ensure the validity and reliability of the assessment measures you use?
Sample answer:
Validity
- Content validity: Verifies that the measures assess the intended constructs by directly evaluating their content.
- Criterion validity: Compares the measures’ results with a known criterion measure, such as clinical diagnosis or health outcomes.
- Construct validity: Assesses the extent to which the measures reflect the underlying theoretical constructs they are intended to measure. This involves examining the relationships between the measures and other relevant variables.
Reliability
- Test-retest reliability: Measures the consistency of the results over time. This involves administering the measures twice to the same individuals over a specified time interval.
- Internal consistency reliability: Assesses the degree to which the items within a measure are related to each other. This is often calculated using Cronbach’s alpha.
- Inter-rater reliability: Determines the level of agreement between multiple raters who independently evaluate the same individuals using the same measures.
Ensuring Validity and Reliability
- Use validated and reliable measures: Select measures that have been developed and tested to ensure their validity and reliability.
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