About the Study

The Millennium Cohort Family Study is a research project sponsored by the Department of Defense aimed at understanding the impact of military service on spouse and child health, as well as overall family functioning. Notably, the Family Study is the sole DoD-wide, long-term study of military spouses and children, as well as the only DoD-representative study of health and relationship well-being among military families. The findings from the study inform leadership and policy and guide the development of interventions and support programs that positively impact military families.

Participants of the Family Study include spouses of service members from the Millennium Cohort Study, as well as single-parent service members. Participation is voluntary. However, participating makes it possible to form a more complete picture of how military life experiences affect the health and well-being of service members and their families. We understand that relationships and families change over time, so we encourage participation even after separation from service or if spouses experience a change in relationship status.

About Family 1

About Family 2

About Family 3

Current Leadership
Photo of Hope Seib McMaster, PhD

Hope Seib McMaster, PhD

Dr. McMaster serves as a civilian research psychologist at the Naval Health Research Center where she is the Principal Investigator of the Millennium Cohort Family Study and Principal Investigator of the newly funded Millennium Cohort Study of Adolescent Resilience (SOAR). Dr. McMaster helped launch the Family Study in 2010 and is now the lead investigator for all foundational papers and the mental health research portfolio director. Prior to joining NHRC, Dr. McMaster taught at the University of Hawaii while her family was stationed at Kaneohe Marine Corp Base, worked as a research psychologist for the University of Missouri-Columbia School of Medicine, and examined racial disparities in health for the Nashville Metropolitan Health Department. Over the past two decades, she has published on the topics of racial bias, racial disparities in health, military couple relationships, survey methodology, and factors influencing military spouse well-being. She also has two active-duty military-connected adolescent daughters.

The Staff

Our study staff is comprised of military and civilian professionals. The staff is located at the Deployment Health Research Department, Naval Health Research Center in San Diego, California.

You can reach the Millennium Cohort Family Study team with the following contact options:

Phone: (800) 571-9248
Email: Click to email
Mailing Address: Deployment Health Research Department
The Millennium Cohort Family Study
c/o Naval Health Research Center
PO Box 503310
San Diego, CA 92150