One tradition in the service user movement argues that if anyone needs training, it is those in power. Thus reasonable adjustments should be made so that disabled people can participate, conferences should employ signers so that deaf BSL users can understand, and documents should be prepared in clear language so that learning disabled people can make sense of them. In nurse education, providing training to service users and carers risks socialising them into the culture of the provider. Here's a radical example of training in committee skills from a mental health services consumer group that illustrates that it is not necessary to socialise people into the traditional culture.
Bournemouth University offers this Induction Pack to service users and carers, while the University of Warwick have decided to offer a training programme for service users and carers, with one of the six days focused on training for teaching. See the outline of the course here. Training for particular aspects of involvement can help people to participate, such as at the University of Sunderland, where service users and carers are trained in the Calgary-Cambridge approach to communication in clinical settings and how to give constructive feedback before offering feedback to student nurses.
Some broad topics are relevant for anyone, such as this online course in Equality and Diversity or online courses on Community Engagement. Neighbouring organisations that are promoting citizen participation may also run training events that will be helpful to some. For example, the Clinical Commissioning Group in Leeds offers this Patient Leadership programme, that, while it does not offer help in teaching, has many components relevant to service users and carers who contribute to nurse education.
Service users and carers should be involved in designing the training - especially people who have been involved for some time, as they will know best what is needed. Clarity about the admission requirements for the training event (academic background, knowledge of nurse education, concentration, literacy etc), and for the task that the trained people will be expected to undertake, will really help people to decide for themselves whether they wish to participate.
It is frustrating for people to be trained and then find that they are not invited to do anything with what they have learned, so the number of people trained and the proximity in time to the involvement opportunity need to be carefully planned.
If service users and carers are required to undertake 'mandatory' training on a subject such as equalities or data protection, joining in with staff in the same event will help people feel that they are a real part of the organisation.