Studies show people can be consciously committed to egalitarianism, and deliberately work to behave without prejudice, yet still possess hidden negative prejudices or stereotypes.

So even though we believe we see and treat people as equals, hidden biases may still influence our perceptions and actions.

Psychologists at Harvard, the University of Virginia and the University of Washington created "Project Implicit" to develop Hidden Bias Tests — called Implicit Association Tests, or IATs, in the academic world — to measure unconscious bias.

Take a test at Project Implicit's website and see what may be lingering in your psyche.