Laurie Kramer, Who Has Conducted a Number of Research Studies

Laurie Kramer, who has conducted a number of research studies on siblings, says that

A) it is best to not intervene in sibling conflict and to allow the siblings to work it out on their own.
B) it is best to let sibling conflicts escalate so that children learn coping strategies to handle anger and disagreement with peers.
C) intervening and helping children resolve sibling conflict are not good strategies.
D) not intervening and letting sibling conflict escalate are not good strategies.