Final answer:
Job knowledge is measured using achievement tests and work samples.
Step-by-step explanation:
In the context of evaluating job candidates, job knowledge is typically measured through achievement tests and work samples.
Achievement tests assess the knowledge and skills acquired by candidates through education or training. These tests can include questions, tasks, or simulations that require candidates to demonstrate their knowledge and competence in a specific subject or area.
Work samples, on the other hand, involve candidates completing tasks or projects that simulate the type of work they would be expected to perform in the job. This allows employers to directly observe and evaluate candidates' job-related knowledge and skills.