“Mark is one of the most innovative and superb advisors that I have ever worked with.  His intellect is unsurpassed, as evidenced by his publications and speaking engagements. He is a forward thinking, leader in his field.”
Zachary Meyer, MHA, Executive VP & General Manager, Health and Productivity Solutions / LifeWorks, Ceridian Corporation

“Mark is smart, inquisitive, and deeply connected to the resources needed to do a thorough and evidenced based job of research, writing, and consultation.”
Paul Terry, PhD, MS, President, CEO, StayWell Health Management

“Mark blends science and art masterfully.  Through his research, consulting, and publishing he helps us ‘know why we know what we know’ so that we can do it better.”
Bob VandePol, MSW, President, Crisis Care Network

“In the 10 years Mark spent with Optum, he was the person who was responsible for assuring that we first developed and then maintained industry leadership in demonstrating value and outcomes.  In fact, he was so effective, we found competitors using our data to argue for the effectiveness of their programs.  In addition to his quantitative and analytic skills, Mark is a charming and entertaining presenter.  He can make normally dry subjects such as statistics come alive, creating a story the audience is delighted to hear.”
Edward Bergmark, PhD, CEO, Optum, UnitedHealth Group, Inc.

“I have worked with Dr. Attridge for many years.  His work is superb; he has excellent and incomparable research, writing and presentation skills.  Mark exhibits incredible commitment, creativity, and professionalism in all his work.”
Diane Stephenson, PhD, CEAP, Chair, Knowledge Transfer and Research Committee,
2007-2010 Board of Directors, Employee Assistance Society of North America