Day-to-Day Responsibilities
Design test items and a test blueprint that maps each question to the skill or trait being measured.
Run pilot tests and collect response data from representative groups of test-takers.
Carry out item analysis to check how difficult each question is and whether it separates strong from weak candidates.
Estimate reliability, for example internal consistency, so that scores are stable and repeatable.
Gather validity evidence showing that scores support the decisions made from them.
Apply scoring models such as classical test theory or item response theory, and help set cut-off scores or standards.
Check for bias and fairness, including whether an item behaves differently for different groups, and write technical reports for test owners.


