Katherine C. (KC) Haydon

Associate Professor of Psychology and Education; Co-Chair of Psychology and Education
Attachment processes in adolescence and adulthood; romantic relationship development and maintenance processes; physiological correlates of relationship functioning; close relationships as developmental contexts across the lifespan

KC Haydon’s research examines the developmental origins of how people behave in their closest relationships. One central question in her work is how romantic partners’ individual developmental histories affect what happens in their current relationship – how they resolve conflicts, regulate and express emotions, and support each other. She also studies how close relationships with parents, friends, and romantic partners contribute to developmental outcomes, such as navigating the transition to adulthood. Haydon’s research is guided by the premise that such outcomes are probabilistically shaped by experiences in multiple contexts.

At Mount Holyoke College, Haydon teaches introductory psychology, developmental psychology, and a seminar on close relationships across the lifespan. She also offers a lab in observational methods that focuses on romantic behavior.

Recent Campus News

Katherine C. (KC) Haydon

A focus on community from a distance

Mount Holyoke’s KC Haydon flipped her classroom to make discussion and building  community among her students the focus of her course.

six adults posting on a deck overlooking a stream

Faculty Awards 2020

Mount Holyoke honored four professors for their scholarship and teaching at the annual Faculty Awards ceremony in early March, prior to the closing of campus. 

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Professor: Resolve conflict for lasting love

A Mount Holyoke College professor finds that getting over conflicts improves relationship happiness, and working through conflicts promotes stability.

KC Haydon teaches class.

Professor: How not to be a helicopter parent.

A Mighty Married Moms podcast featured Mount Holyoke psychologist KC Haydon's research about what parents can do to help teens evolve into healthy adults.

Professor: Hovering parents’ kids slower to fly.

Psychology professor KC Haydon’s research reveals what helps college students more easily take on independent responsibilities as they enter early adulthood.

Recent Publications

Haydon, K. C., & Salvatore, J. E. (2021). A prospective study of mental health, well-being, and substance use during the initial COVID-19 pandemic surge. Clinical Psychological Science, 21677026211013499.

Haydon, K. C., & Moss, C. (2020). Attachment and sleep: A dyadic intensive longitudinal actigraphy study. Journal of Social and Personal Relationshipshttps://doi.org/10.1177/0265407520958476.  

Haydon, K.C., Woronzoff-Dashkoff, A., & Murphy, K. (2020). Who's the boss? How and when process power moderates partner regulation of attachment defenses. Journal of Social and Personal Relationships. https://doi.org/10.1177/0265407519900013

Haydon, K. C. & Roisman, G. I. (2013). "What’s past is prologue: Social developmental antecedents of close relationships." In J. A. Simpson & L. Campbell (Eds.), The Oxford Handbook of Close Relationships.

Haydon, K. C., Roisman, G.I., & Burt, K.B. (2012). "In search of security: The latent structure of the Adult Attachment Interview revisited." Development and Psychopathology24, 589-606