This analysis indicates that most of the students who did well on the exam, overall, got this question correct, whereas most of the poorer performing students got this question incorrect. The question's content was also closely reviewed during the class sessions, as well. The analysis indicates that the high scoring students tended to get this question correct, and that the middle and low scorers missed it. Smell is the only sensory system that is not routed through the thalamus before it projects to the cortex. Taste preferences are genetically determined, and so constant across the world's cultures.
Sound perception is made possible by rods and cones located in the cochlea.
All of these statements are true. The big surprise for me was that 22 people thought that the rods and cones, which are needed for vision, are located in the cochlea, which is the organ responsible for detecting sounds. Both items were adequate in validity, but very difficult. One asked Don studies the impact of music on behavior. He exposes one group of 12 years olds to Dave Mathews' music.