Complex sentence: The effects of covert incest on a child when they become adults are thought to mimic actual incest, although to a lesser degree, It is a term strictly describing interactions between a parent and child that are exclusive from sexual abuse.
Split into simpler sentences: The effects of covert incest on a child when they become adults are thought to mimic actual incest, although to a lesser degree. This term describes interactions between a parent and child that are exclusive of sexual abuse.