Which of these actions would most help a worker improve her productivity?

a. finding a new job in a different field

b. taking a training course related to her job

c. buying a laptop computer for home use

d. asking her employer to give her a raise

b. taking a training course related to her job

Taking a training course related to her job would directly improve her skills and knowledge, leading to increased productivity in her current role. The other options may have indirect or minimal impact on productivity.