Mach IV app for iPhone and iPad

The MACH-IV test is a twenty statement personality survey that is now the standard self-assessment tool of Machiavellianism.

People scoring above 60 out of 100 on the MACH-IV are considered high Machs; that is, they endorsed statements such as, "Never tell anyone the real reason you did something unless it is useful to do so," (No. 1) but not ones like, "Most people are basically good and kind" (No. 4). People scoring below 60 out of 100 on the MACH-IV are considered low Machs; they tend to believe, "There is no excuse for lying to someone else," (No. 7) and, "Most people who get ahead in the world lead clean, moral lives" (No. 11).