Verhulst, F.C.

problem study children child adolescent score behavior disorder sample effect parent anxiety level health psychiatry symptom model association pregnancy factor difference scale development group cortisol family externalizing result mother depression table research journal infant stress generation r study netherland internalizing analyses rotterdam signi gender childhood psychopathology cannabis use cannabi outcome dutch birth population university fi ndings behaviour adolescence measure women assessment smoking adult interaction attention verhulst externalizing problems status depressive generation erasmu school month teacher internalizing problems response number growth report participant psychol reference variable health problems