Browsing by Subject "Wartegg Zeichen Test"

In psychological assessment projective techniques have been a target of criticism mainly because they are not considered as a valid and reliable methods in scientific study. When projective techniques are used in psychological decision making they should also be incremental valid. Incremental validity is found when an instrument contributes important and additional information above and beyond other used instruments. In Finland the most popular projective test is Wartegg Zeichen Test (WZT) where the tested person should complete eight different drawings. Nowadays psychologist use Gradziella’s interpretation system for WZT altough it is considered unreliable and unscientific. Alexithymic persons tend to draw less human face in WZT, yet more study is needed before any conclusions can be drawn. Moreover, research traditions of WZT are vague. Scientifically we cannot say that WZT has validity, reliability nor incremental validity, because we do not have enough scientific evidence. Incremental validity of WZT should be studied more and the usefullness of WZT should be reconsidered. In addition, there should be new updated finnish normal sample and even an all new interpretation system based on scientific study for WZT.