Can someone lying for a long period of time to a child about who their biological father is cause the child to become a compulsive liar?

More complicated.: A child learns behaviors by example, and if adults in their lives often lie, they will model that. Adults often tell "white lies" to avoid an interaction, ie, "Tell them I'm taking an nap and can't talk." Thirdly, children often lie to avoid consequences, ie, why tell the truth if that leads to punsihment Also, it depends on whether the child is aware of the truth or falsehood of his parentage.