Aaron Beck's cognitive triad of depression includes all except
Negative thoughts about friends aren't included in triad.Environment, self and future -hopelessness, wohlessness, helplessness are only described as triad by Aaron Beck Ref: Essentials of postgraduate psychiatry By JN Vyas 1st ed Pg 604
Negative thought of self
Negative thought of future
Negative thought of friends
Negative thought of environment
Mood disorders