Career Key
InstrumentsThe Career Key test measures the strength of six Holland personality types. These types are based on Holland career choice theory, the one most widely used by professional counselors - and the subject of hundreds of scientific studies. The Career Key test can be taken using paper-pencil or online. Validity and reliability studies have been run on this instrument. CareerKey.org provides a link to purchasing the Career Key instrument (both paper-pencil and online versions) in multiple languages as well as various other resources produced by Career Key.