1. To assess the differences between the average IQ of Californians with that of a sample of 150 individuals from Riverside California. 2. To assess whether the PE scores of a group of high-school girls improved after they started consuming breakfast. 3. To examine the differences in-terms of the headache scores between those receiving Advil vs those receiving Tylenol. 4. To compare two groups of people; group 1 with college students and group 2 with their matched best friends