Projective tests have not been researched enough to prove its effectiveness in accessing personality, except the Rorschach test and the Thematic Apperception Test. Even so, the results of research indicate that the reliability of the Rorschach test is poor because the interpretations of the responses are too depended on the clinician's judgment, since it is true that two different clinicians might interpret the same responses quite differently
The results of the test might contradict with the person's actual behavior. A person who makes up aggressive stories may not be aggressive in real life.
Defenders of the two tests state point out that it is unfair to expect accurate prediction from the two tests; they are useful as light additional information, example the person's life history and observations of behavior. Rorschach interpretations should be used as tentative hypotheses. These hypotheses should be seen as valid when comfirmed by other sources of data.
