A high number of unanswered questions can occur for a variety of reasons. It might indicate difficulties with reading, psychomotor retardation, indecision, confusion, or extreme defensiveness. These difficulties might be consistent with severe depression, obsessional states, extreme intellectualization, or unusual interpretations of the items. Defensiveness might stern from legalistic overcautiousness or a paranoid condition. 'High Cs might also occur from the perception that the unanswered items are irrelevant.