Projective techniques refer to those methods, which intended for
the measurement of personality characteristics or traits that involve
presentation of relatively unstructured stimuli to the respondent.
In simpler terms, subjects are assigned to unstructured tasks without informing them in proper ways to measure or get note on their natural characteristics (instinct behavior).
Examples of Unstructured stimuli are Ink blots (the Rorschach test), Pictures (TAT), Sentence completion, etc.
Projective techniques of personality assessment involve asking individuals to respond to ambiguous (open to more than one interpretation; not having one obvious meaning) test stimuli with no apparent meaning (Viglione and Rivera, 2003).