Answer:
Projective test
Explanation:
Projective test -
It is a type of personality test , which make the person respond to any ambivalent stimuli , which can disclose any secret emotions or problems present in the person's mind , is known as projective test .
This test is also referred to as self - report test and objective test .
Hence, from the given scenario of the question,
Juan randomly threw colors and just created a awesome piece , depicting it to be projective test.