Attempting to eat spaghetti by trying to put a piece in the ears as well as in the mouth is typical of sensorimotor stage

Of the different types of aggression, the most destructive and threatening is

instrumental aggression. reactive aggression. bullying aggression. relational aggression.

Which character trait has proven to be associated with many behavioral problems?

a. low conscientiousness b. low neuroticism c. high openness d. high extraversion