Cattell classified projective tests, such as the rorschach inkblot test, as:

a. d-data

b. l-data

c. q-data

d. t-data

Cattell classified projective tests, such as the rorschach inkblot test, as: D.) T-data

According to Cattle and Kline, T-data are " based on objective tests defined as standard stimulation situations in which the individuals’ behavior is measured in such a way that the subjects are unaware of what is really being measured"

The Rorschach inklbot test was initially created to produce profile of people who suffer from mental disorder like schizophrenia. However, it became widely used to become a projective measure of an individual's personality.