Final answer:
Task significance in the job characteristics model refers to the degree of impact a job has on the organization or society. It relates to jobs requiring completion of identifiable and important work.
Step-by-step explanation:
In the job characteristics model, task significance refers to the degree to which a job requires completion of a whole and identifiable piece of work. This means that the job is seen as important because it has a significant impact on the organization or society as a whole.
Examples of jobs with high task significance include doctors saving lives, engineers designing important infrastructure, and lawyers fighting for justice.