Secure attachment (type B) is more likely if:

• The parent is usually sensitive and responsive to the infant’s needs.

• The infant–parent relationship is high in synchrony.

• The infant’s temperament is “easy.”

• The parents are not stressed about income, other children, or their marriage.

• The parents have a working model of secure attachment to their own parents.

Insecure attachment is more likely if:

• The parent mistreats the child. (Neglect increases type A; abuse increases types C and D.)

• The mother is mentally ill. (Paranoia increases type D; depression increases type C.)

• The parents are highly stressed about income, other children, or their marriage. (Parental stress increases types A and D.)

• The parents are intrusive and controlling. (Parental domination increases type A.)

• The parents actively abuse alcohol. (Father with alcohol use disorder increases type A; mother with alcohol use disorder increases type D.)

• The child’s temperament is “difficult.” (Difficult children tend to be type C.)

• The child’s temperament is “slow to warm up.” (This correlates with type A.)