Additionally , an apparently good sibling relationship , with no physical or emotional direct aggression , may hide this type of abuse .
It is challenging to identify and calculate prevalence rates because it is normally done indirectly so the perpetrator is unknown to the victim .
An apparently good sibling relationship , with no physical or emotional direct aggression , may hide this type of abuse .
It is challenging to identify and calculate prevalence rates because it is normally done indirectly so the perpetrator is unknown to the victim .