A Teacher
Christopher Peterson
Character strengths and explanatory style
The transmission
Christopher Peterson (February 18, 1950 - October 9, 2012) was an American psychologist and, for most of his career, the Arthur F. Thurnau Professor of Psychology at the University of Michigan, which he joined in 1986.
He earned his PhD at the University of Colorado at Boulder and built his early reputation on explanatory style - how the habitual way people explain bad events (as permanent and pervasive, or temporary and specific) predicts later depression, health, and achievement.
With Martin Seligman and Steven Maier he co-authored Learned Helplessness: A Theory for the Age of Personal Control (1993). He died unexpectedly of heart failure in Ann Arbor in 2012.
Peterson became a central architect of positive psychology. With Seligman he led the three-year project, involving 55 social scientists, that produced Character Strengths and Virtues: A Handbook and Classification (2004) - the field’s deliberate counterpart to the DSM, classifying 24 measurable strengths under six cross-cultural virtues and underpinning the VIA Inventory of Strengths.
His textbook A Primer in Positive Psychology (2006) shaped how the field was taught, and his often-quoted summary of the whole enterprise was “Other people matter.” His work is empirical and self-aware about limits: he treated the strengths classification as a provisional taxonomy to be tested, and positive psychology’s later replication concerns apply to parts of the intervention literature he helped seed.
What they gave
Explanatory style: Showed that how one habitually interprets events measurably predicts mood, health, and outcome - direct support for the mind-power claim that belief shapes results (The Inner Creates the Outer, Only Love Is Real).
- Character strengths classification (VIA): Co-built a validated framework for identifying and cultivating strengths, the basis of widely used positive interventions (It's All Play).
- Learned helplessness and optimism: Helped establish the research lineage linking attributional habits to resilience and depression risk.
- Honest limits: Treated the strengths taxonomy as provisional; the positive-intervention evidence he helped launch shares the field’s replication uncertainties.
In their words
Other people matter.
If you never venture outside the box, you will probably not be creative. But if you never get inside the box, you will certainly be stupid.
Most who think seriously about creativity agree that it entails not only novelty (that outside the box stuff) but also utility, and in order to be useful, it has to go above-and-beyond what is already known (that inside the box stuff).
Positive psychology is the scientific study of what goes right in life, from birth to death and at all stops in between.
Everyone’s life has peaks and valleys, and positive psychology does not deny the valleys.
The line they stand in
Influenced by: Martin Seligman, his long-time collaborator; the learned-helplessness tradition (Maier, Abramson); Albert Bandura’s work on self-efficacy and agency.
- Influenced: The VIA character-strengths research program, positive-intervention studies, and the teaching of positive psychology through his widely used primer.
Revelations they taught
Essential Works
- Character Strengths and Virtues2004
- A Primer in Positive Psychology2006