Research Program
My broad research agenda is to examine socioemotional development from a dynamic systems (DS) perspective in both typical and atypical populations. Adolescence, particularly the transition into early adolescence, is the focal age of my research, although I am also interested in general patterns of developmental processes across all ages. To pursue this agenda, I am interested in developing and applying methods that are best suited for the analysis of processes of change. My research so far has primarily used the state space grid technique, a DS method created by my mentor (Marc Lewis).

There are 4 main areas of my research program:

1. Dynamic Systems (DS) Approach to Development
2. Observing the Dynamics of Socioemotional Interactions
3. Adolescent Emotional Development
4. Methodology

Education
B.A. Psychology, University of Massachusetts, Amherst, MA, 1989
M.S. Psychology, University of Oregon, Eugene, Oregon, 2001
Ph.D. Developmental Science, University of Toronto, 2005

Publications
Granic, I., & Hollenstein, T. (in press). A survey of dynamic systems methods for developmental psychopathology. In D. Cicchetti (Ed.) Handbook of Development and Psychopathology.

Hollenstein, T., Granic, I., Stoolmiller, M., & Snyder, J. (2004). Rigidity in
parent-child interactions and the development of externalizing and internalizing behavior in early childhood. Journal of Abnormal Child Psychology, 32, 595-607.

Hollenstein, T., Leve, L., Scaramella, L., Milfort, R., & Neiderheiser, J. (2004).
Openness in adoption, knowledge of birthparent health history, and adoptive
family adjustment. Adoption Quarterly, 7, 43-52.

Lewis, M.D., Zimmerman, S., Hollenstein, T., & Lamey, A.V. (2004). Reorganization
in coping behavior at 1 1/2 Years: Dynamic systems and normative change. Developmental Science, 7, 56-73.

Granic, I., Dishion, T. J., & Hollenstein, T. (2003). The family ecology of adolescence: A dynamic systems perspective on normative development. In G. Adams & M. Berzonsky (Eds.), Handbook of Adolescence, New York: Blackwell.

Granic, I., & Hollenstein, T. (2003). Dynamic systems methods for models of
developmental psychopathology. Development and Psychopathology, 15, 641-669.

Granic, I., Hollenstein, T., Dishion, T. J., & Patterson, G. R. (2003). Longitudinal
analysis of flexibility and reorganization in early adolescence: A dynamic systems study of family interactions. Developmental Psychology, 39, 606-617.

Hodges, S. & Hollenstein, T. (2001). Direction of comparison in typicality judgments,
Social Cognition, 19, 601-624.

Honours and Awards
2003 – 2005 Pre-doctoral Fellowship Award, National Institute of Mental Health. Socioemotional Flexibility at the Early Adolescent Transition.

2001 – 2003 Entrance Scholarship, Department of Human Development and Applied Psychology, University of Toronto.

2002 Ames Award, Canadian Psychological Association for outstanding presentation at the Biennial Meeting of the International Society for the Study of Behavioral Development. Structural changes in family interactions during the early adolescent transition: A dynamic systems approach.

2001 Oregon Social Learning Center, Prevention/Intervention Theory Core Grant. Studying structural differences underlying family interactions using dynamic systems methods.