Final answer:
Whether a 'train-the-trainer' session is needed before a meeting depends on the context, including the meeting's objectives, the leader's knowledge, and training expectations.
Step-by-step explanation:
The statement 'It is always important to hold a "train-the-trainer" session for the leader prior to a meeting' can be true or false, depending on the context. In an organizational setting, if the leader is responsible for training others or disseminating information from the meeting, a train-the-trainer session can be very beneficial. However, it is not always necessary in every scenario. For example, if the leader is already knowledgeable about the meeting content or the meeting is informal and does not require any subsequent training, then a train-the-trainer session may not be needed. The importance of such a session will vary based on the objectives of the meeting, the existing knowledge of the leader, and the expectation for the leader to train others post-meeting.