To determine which method Tammy preferred to use for training new employees, we would need more specific information about her preferences or experiences related to each training method. Based on general practices, one-on-one training is often favored for personalized attention, while group training encourages teamwork and collective learning. Job shadowing allows new employees to learn by observing experienced colleagues, and peer training promotes a collaborative approach.
If you have any specific details about Tammy or her training philosophy, I can help you analyze which method she might prefer!