The returns from investing in training depend crucially on the quality, motivation and appropriateness of the participants. Hence, it is very useful to define specific requirement criteria in advance, to attract the right participants. Also, if the demand for a course exceeds the number of seats, you will need to select the most appropriate participants on the base of clear and unambiguous selection criteria. Including the right participants improves the impact of a course or workshop.
What you achieve with a course depends to a large extent on the motivation and appropriateness of participants. Hence, the requirement criteria for participants have to be defined keeping in mind the type and aims of the training given. They should be clear and unambiguous, and promote the prospects of maximising activity benefits and achieving sustainable impacts.
Selecting the right course participants is crucial for the success of the course. Source: KROPAC (2010)
Several different aims can be accommodated in the selection of participants. Key criteria, depending on the aim of the training or workshop, might include (adapted from SUSAN 1998):
Unfortunately, very often, course organisers will face that:
These problems can partly be overcome with asking for a course fee that has to be paid (at least partly) in advance. However, the demanded course fee will highly influence the composition of participants, as some people may not be able or may not want to pay a high course fee. Discounts for students, NGOs or poorer participants may ease this problem and will ensure a more heterogeneous group. Also the means and channels to market a training will highly influence the composition of participants.
Even if course costs are covered by other sources, whenever possible courses should not be offered completely for free. It will attract people that have “nothing else to do” and not necessarily those on whom a training might have the biggest impact. Even worse, it may occur that participants are paid to participate in workshops – even for those who are in employment and paid (e.g. as public servants) to be present. This not only inflates the cost of workshops – but it is an indication of lack of real commitment to learning and should be discouraged.
So, issues to address while identifying participants can be summarised as follows (PATRICK 2009);
Consult participants before planning the workshop. You may want to ask participants in advance about their expectations of the workshop, as well as their existing level of experience by conducting a learning needs analysis. Talking to participants before the workshop is planned helps to ensure that the content is at the right level, and that materials and activities are relevant for everyone.
The requirement criteria for participants of a specific training have to be defined carefully. This activity help the trainer to deliver the training in the interest of the target participants (INGRID 2005). Trainers need to address the selection procedure with good care. If you do not understand the participants well enough to know who can be of most use, do not be afraid to ask participants that you have to train. Carefully defining requirement criteria (e.g. the completion of a previous module, or a certain job position) helps you to compile the group in a manner so that you can achieve the biggest outcome.

BENS, I. (2005): Facilitating with ease! Core skills for facilitators, team leaders and members, managers, consultants and trainers. San Francisco: Jossey-Bass.
PATRICK, F. (2009): Improve Your Coaching & Training Skills. New Delhi: Kogan Page India Pvt Ltd.
SUSAN, I. (1998): Using Adult Learning Principles in Adult Basic and Literacy Education. Columbus: Centre on Education and Training for Employment. URL [Accessed: 29.04.2010]. PDF
TSHIULA, J.; MARYANNE, S. J. (2005): Training Methodologies and Principles of Adult Learning. United States: United States Agency for International Development (USAID). URL [Accessed: 29.04.2010]. PDF
USAID (Editor) (2001): A Facilitators Guide to Participatory Workshops with NGOs/CBOs Responding to HIV/AIDS. United Kingdom: International HIV/AIDS Alliance. URL [Accessed: 07.05.2012]. PDF
INGRID, B. (2005): Facilitating With Ease. United States of America: Jossey-Bose Books.

DAUGHERTY, A.R. (1978): Teaching Adults. Oklahoma: Division of Agricultural Sciences and Natural Resources, Oklahoma State University. URL [Accessed: 29.04.2010]. PDF
The volunteers’ teaching series gives an insight to adult learning practices.
GUIJT, I.; PRETTY, J.; SCOONES, I.; THOMPSON, J. (1995): A Trainers Guide for Participatory Learning and Action. London: International Institute for Environment and Development. PDF
This trainers guide provides guidelines for participatory learning and action, which can be applied for any training or workshop.
RIETBERGEN-McCRACKEN, J.; NARAYAN, D. ; WORLD BANK (Editor) (1998): Participation and Social Assessment: Tools and Techniques. Washington: World Bank. URL [Accessed: 10.05.2010]. PDF
This resource kit aims to share information and experiences on participatory methods in the context of development cooperation. The primary focus concentrates on providing practical guidance and case examples.
SRINIVASAN, L. (1990): Tools for Community Participation. A Manual for Training Trainers in Participatory Techniques. New York: PROWESS/UNDP Technical Series. PDF
This manual focuses on one approach to participatory training which PROWESS has applied in numerous projects and workshops. Intended primarily for the training of trainers in participatory techniques, it describes these techniques in a "how to" step-by-step fashion. This manual is also intended to be a "discussion starter" and delves into some of the political issues underlying participation and the often conflicting priorities of communities and development practitioners.
SUSAN, I. (1998): Using Adult Learning Principles in Adult Basic and Literacy Education. Columbus: Centre on Education and Training for Employment. URL [Accessed: 29.04.2010]. PDF
This journal article contains information on adult learning principles, and provides you with some basic and very useful information on how to organise and facilitate a training.
TSHIULA, J.; MARYANNE, S. J. (2005): Training Methodologies and Principles of Adult Learning. United States: United States Agency for International Development (USAID). URL [Accessed: 29.04.2010]. PDF
A Training-of-Trainers manual to strengthen the capacity of a team of trainers by applying different training methodologies and principles of adult learning to the trainings of health service personnel, NGO staff and community-based health workers.
USAID (Editor) (2001): A Facilitators Guide to Participatory Workshops with NGOs/CBOs Responding to HIV/AIDS. United Kingdom: International HIV/AIDS Alliance. URL [Accessed: 07.05.2012]. PDF
This guide aims to support people who facilitate participatory workshops with non-governmental organisations (NGOs) and community-based organisations (CBOs) responding to HIV/AIDS in developing countries. It contains also some general information on workshop facilitation.

SATISH, S. (2010): Sample Format of Criteria of Participation. Pune: ESF. PDF
Format explains the criteria for participants attending SSWM Courses.
SATISH, S. (2010): Sample Format of Registration Form. Pune: ESF. PDF
Template registration form for SSWM Courses.
SATISH, S. (2010): Sample Format of List of Participants. Pune: ESF. PDF
Template for a list of participants for SSWM courses.
http://teaching.berkeley.edu/ [Accessed: 29.04.2010]
This site provides you with many tools for teaching. This specific site gives information on how to prepare a large lecture course.
http://serc.carleton.edu/ [Accessed: 29.04.2010]
Provides Tools for Teaching, training techniques and adult training strategies.