Graduate Students

Cody R. DeHaan

Graduate Student
Entry Year: 2010-2011
Faculty Mentor(s): Edward Deci

494 Meliora Hall
(585) 273-5241
Fax: (585) 273-1100

Research Overview

My interests broadly lie in the field of human motivation, specifically around topics of identity and natural environments.

Selected Publications


  • Weinstein, N., Ryan, W. S., DeHaan, C. R., Przybylski, A. K., Legate, N., & Ryan, R. M. (in press). Parental autonomy support and discrepancies between implicit and explicit sexual identities: Dynamics of self-acceptance and defense. Journal of Personality and Social Psychology.
  • Weinstein, N., DeHaan, C. R., & Ryan, R. M. (2010). Attributing autonomous versus introjected motivation to helpers and the recipient experience: Effects on gratitude, attitudes, and well-being. Motivation and Emotion, 34, 418-431.


  • Weinstein, N., Ryan, W., & DeHaan, C. R. (2010 July). What kind of parent-child relationships lead to homophobia (and by what mechanism)? In Assor, A. (Chair), A self-determination theory perspective on close relationships. Talk presented at the International Association for Relationships Research Conference, Hertzliya, Israel.
  • Schwörer, B., DeHaan, C. R., & Weinstein, N. (2010). What kind of parenting leads to hompohobia (and by what mechanism)? To be presented at the Self-Determination Theory Conference, Ghent, Belgium.
  • DeHaan, C. R., Weinstein, N., & Ryan, R. M. (2009). The Natural Way to Strive: Aspirations in the Context of Natural and Non-Natural Environments. Presented at the 2nd Annual Undergraduate Research Exposition, Rochester, NY
  • DeHaan, C. R., Weinstein, N., & Ryan, R. M. (2009). The Natural Path to Freedom: The Effect of nature on Salience of Introjects. Presented at the 10th Annual Conference of the Society of Personality and Social Psychology, Tampa, FL


  • Teaching Assistant: Introduction to Statistical Methods in Psychology, Spring 2011 & Autumn 2011
  • Teaching Assistant: Theories of Personality and Psychotherapy, Autumn 2010

Professional Honors and Awards

  • 2010 - Dr. Herbert L. Zimmer Award in Undergraduate Research; University of Rochester