Software engineering is team oriented and intensely complex, relying on human collaboration and creativity more than any other engineering discipline. Poor software estimation is a problem that within the United States costs over a billion dollars per year. Effective measurement of team cohesion is foundationally important to gain accurate estimations of software development schedules, quality and cost. In light of recent team cohesion research, COCOMO II.2000 (Constructive Cost Model), a well-known industry software estimation tool, appears to contain a less than effective method in determining team cohesion. The COCOMO II.2000 TEAM variable represents the team cohesion measure of all stakeholders involved in the software development product life cycle and is one of five special factor variables aggregated into an exponent that represents risk to product development. An ineffective or inaccurate measure of team cohesion creates an exponential error in the software estimation results generated by the COCOMO II.2000. Using the Delphi method, a panel consisting of team cohesion, project management, and emotional intelligence experts have determined the COCOMO II.2000 TEAM variable does not effectively represent team cohesion as defined in this research. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]