Of the following reasons, the LEAST likely to contribute to the differences between African Americans and white Americans in receiving long-acting stimulant drug treatment for ADHD is:

Travis is a participant in the X-games every year. These games feature events that are high flying and exhilarating to watch, but also dangerous to the participants. Travis is willing to take chances with his health to get the adrenaline rush. He would most likely rank high on what factor?

a. openness b. neuroticism c. conscientiousness d. extraversion

Youth brought up in a culture that is more accepting of real-life violence tend to be more violent themselves. This is an example of the

a. exosystem b. macrosystem c. mesosystem d. microsystem