As a tool, though, its utility remains doubtful. Its test-retest reliability is very low, meaning that, if you give the same person the test at two different times, you're likely to get two different results. This strongly suggests that, while the test might capture aspects of a person's personality, it's also functioning like a glorified mood ring. Without some way to separate those two aspects, its utility as an indicator of anything useful about any one individual is highly suspect.