November 7, 2018 0 Comments

There are occasions in research where it becomes necessary to weight data in order to reduce as much bias as possible and to be able to generalize findings to a specific population. In

September 4, 2018 0 Comments

Chicago, IL - September, 2018 About VIP Research and Evaluation Led by Dr. Martin (Marty) Hill, VIP Research and Evaluation clients receive our full attention. We devote time to learning as much as we can about