Ego psychology expanded freuds psychoanalysis by including the enviornment

Ego psychology also included the interpersonal relationship.

ego extended the drive theory of freud.

included the therapist in the analytic relationship.

The father of "Ego Psychology"

Percival Symonds has written:

'The Ego and the self. --' -- subject(s): Self, Ego (Psychology)

Michael A. Buck has written:

'Age and gender differences in ego identity status' -- subject(s): Testing, Ego (Psychology), Identity (Psychology)

Gordon Emmerson has written:

'Ego state therapy' -- subject(s): Ego (Psychology), Psychotherapy