Working Paper Series No. 3 Title: The Quality of Doctoral Dissertation Supervision and a Collaborative Cohort Model Author: Dr. Ling Wang (Nova Southeastern University, Florida) Abstract: Many doctoral students do not complete their degrees for a variety of reasons including personality factors, motivational factors, feelings of isolation, family demands, and financial circumstances. Although some of these factors are out of the control of university educators, the provision of support, particularly during the dissertation phase of a doctoral program, may be one way to increase completion rates. In this study, a Collaborative Cohort Model (CCM) is developed as an innovative support for the research endeavors of the doctoral students to enhance the quality of doctoral dissertation supervision. Testing of the CCM is also proposed in order to describe and evaluate the experiences of the doctoral students in the cohort.