An expert on eye movement desensitization and reprocessing (EMDR), he is also the creator of progressive counting (PC), both are psychotherapy methods for resolving traumatic memories and associated symptoms.
in Clinical Psychology (1994) followed by a post-doc in Child and Adolescent Trauma from Community Services Institute (1996).
Greenwald has developed various assessment instruments for children's post-traumatic symptoms, including the Child Report of Post-traumatic Symptoms (CROPS)[1] and Parent Report of [the child's] Posttraumatic Symptoms (PROPS),[2] Lifetime Incidence of Traumatic Events for students or parents (LITE-S and LITE-P), and Problem Rating Scale.
[4] In recent years, he has been pioneering intensive trauma-focused therapy in the format of full consecutive days.
[5] Greenwald is an affiliate professor at the University at Buffalo School of Social Work, served on the board of directors for the EMDR International Association, and is a fellow of the American Psychological Association, Division 56.