Jane and john were always able to leave baby rebecca with a baby-sitter, but now, at 6 months of age, she begins to cry loudly when they leave. this separation anxiety indicates that rebecca:

Separation anxiety is common in babies around six months old. Separation anxiety is a normal part of the maturational process; as it indicates that babies are now able to differentiate between caregivers. Babies also develop the understanding of object permanence, which means they can think about things that are not directly in front of them. The baby is not sure when the parent will return, thus the anxiety.