Complex sentence: She was a member of the Detroit Psychoanalytic Society and was a founding member of the Cleveland Psychoanalytic Society, founded in 1957.Katan-Rosenber was the Educational analyst and Chair of the Education Committee at the Psychoanalytic Institute in Cleveland.
Split into simpler sentences: She was a member of the Detroit Psychoanalytic Society and was a founding member of the Cleveland Psychoanalytic Society, founded in 1957. Katan was the Educational analyst and Chair of the Education Committee at the Psychoanalytic Institute in Cleveland.