Dr. Monk’s research primarily centers on romantic relationship quality and instability. More specifically, he is interested in how couples develop and maintain key relational processes (e.g., stability in commitment and satisfaction) across critical transitions (e.g., the transition to adulthood, the transition to marriage). His second line of research focuses on the relational dynamics and mental health of military and veteran couples during transitions – such as the family readjustment phase after a service member returns from deployment.