Sample interview questions: Can you explain the process of adaptive testing and how it can enhance the efficiency and precision of cognitive assessments?
Sample answer:
Adaptive Testing Process
Adaptive testing involves administering items whose difficulty is tailored to each individual’s performance, aiming to provide an accurate assessment of their ability level with maximum efficiency.
Process:
- Initial Item Selection:
- The test starts with an item of medium difficulty.
- Item Administration and Response:
- The candidate responds to the item.
- Item Pool Update:
- Based on the response, the item pool is updated to include items that are either easier or harder.
- Next Item Selection:
- The next item is selected from the updated pool, matched to the candidate’s estimated ability level.
- Repeat:
- Steps 2-4 are repeated until a termination criterion is met, such as a predetermined number of items or a stable ability estimate.
Advantages of Adaptive Testing:
Enhanced Efficiency:
- Tailored item difficulty reduces the need for excessive items, shortening the assessment time.
- Fewer items result in less fatigue, improving candidate focus and performance.
Increased Precision:
- Precision is improved by constantly updating the item pool with items closely matched to the candidate’s ability.
- This granular approach reduces measurement error and provides more accurate ability estimates.
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