His research experience has included both qualitative and quantitative research methods. He has strong connections to primary care physicians through his work with Primary Care Networks in Alberta. Dr. Klein has expertise in behaviour change including the Theory of Planned Behaviour, often used in lifestyle interventions. He has been recruited for his experience in primary care research by provincial and national committees. Dr. Klein is a recognized expert on lifestyle intervention in primary care and has several ongoing research and health promotion projects based in primary care in Alberta. He gave a keynote address on lifestyle modification at the Alberta College of Family Physicians Annual Meeting in February 2013.