Professional associations have been known to provide a variety of benefits to its members, the organization, and the public. However, little evidenced-based data has been reported on the impact of professional association involvement on job satisfaction. In fields where many of its members function independently or in small teams, the need for a connection to colleagues via professional associations is even more vital to the support, development, and standards used by these professionals. This is especially true for anatomical materials professionals from academic institutions, who are part of a new, young, and smaller sized profession. Gaining a solid understanding of the relationships of professional association involvement and job satisfaction will aid decision makers to support or not support the involvement of anatomical materials professionals in professional associations. Using a quasi-experimental quantitative research approach, this relationship was investigated. The results suggested that there was not a significant relationship that existed between professional association membership and job satisfaction when considered alone. When only examining those participants with a positive attitude, a significant relationship did exist. This indicated that with a positive attitude and professional association membership, a significant difference is made to the job satisfaction of the participants. [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.]