Along with Lawrence Calhoun, Tedeschi pioneered the concept of post-traumatic growth (PTG), which is a construct of positive psychological change.
It holds that this change transpires as the outcome of an individual's struggle with a highly challenging, stressful, and traumatic incident.
[9] This concept is part of the broader positive psychology theoretical framework that enables counsellors and psychotherapists to focus on strength and competencies of patients.
[10] According Tedeschi and Calhoun, PTG can manifest in these domains: appreciation of life, relationship with others, new possibilities, personal strength, and spiritual change.
[11][12] They also explained that PTG maybe facilitated by the following mechanisms: Tedeschi was also a consultant for the American Psychological Association for the development of materials that cover trauma and resilience for psychologists.