The lie scale seems to be what detects possible lies such as answering questions with contradictory anwsers. It is probablly normal to get a low lie score even if you are anwsering the questions honestly. A high lie score probablly indicates either you are lying, or don't really know how you feel about the anwser. It could also indicate someone who is anwsering randomly, or doesn't understand the questions, or has an identity problem and doesn't know who they are. I'm imagining its like the MMPI lie score.