Roger Ellis is Professor of Applied Psychology at the universities of Ulster and Chester. In 1999, he established the Social and Health Evaluation Unit which has completed more than 100 programme evaluations. He received an Order of the British Empire (OBE) recognising his work in the application of psychology in complex real-life situations including social skill training; quality assurance; and latterly programme evaluation. He has written 15 books dedicated to the communication and utility of psychology.

Elaine Hogard is Professor of Programme Evaluation and Director of Assessment and Programme Evaluation at NOSM University. She has taught and supervised in Canada, the USA, the UK, and has published extensively on programme evaluation theory, method, and practice. Her evaluations span education, health, and social care, emphasising practical application to complex issues. She is committed to democratising knowledge by ensuring evaluation findings are accessible, meaningful, and useful to practitioners, policymakers, and communities alike.