Related abilities

Does not demonstrate frequent or long bouts of being upset (2-4 months)

Is generally happy when not hungry or tired (6-9 months)

Is generally happy when not hungry or tired (9-12 months)

Cries and notices when hurt (9-12 months)

Is comforted by cuddling and a parent’s touch (12-15 months)

Is generally happy when not hungry or tired (12-15 months)

Cries and notices when hurt (12-15 months)

Cries and notices when hurt (18-24 months)

Is generally happy when not hungry or tired (18-24 months)