You want to know why teenagers have more difficulty focusing their attention early in the morning than do younger children. Treat each of the items listed below as a different type of evidence intended to address this question. Do the following:
Evidence:
a. You have overheard many teenagers talking about why they struggle with paying attention early in the morning, so you believe you have a good understanding of why they have such difficulty.
b. 30 well-designed studies published in prestigious journals have discovered that melatonin, a hormone involved in sleep, is secreted by the body of teenagers at a different point in the sleep-wake cycle than it is for young children or adults.
c. A nutrition expert, appearing on Good Morning America, stated that she believes teenagers have more difficulty focusing their attention than younger children because, as she learned in her interviews with students of all ages, the teenagers were more likely to skip breakfast.
d. Your cousin has a hunch.
e. 20 well-controlled experiments published in prestigious journals strongly suggest a cause for why teenagers have more difficulty focusing their attention early in the morning than do younger children.
f. After a recent airing of a story on the news show Dateline on NBC about some people being morning people and others being night people, Channel 5 asked viewers to call in the reasons they have difficulty focusing attention in the morning. Two reasons were given most frequently, and those reasons were presented on that night's local news.
g. Two well-controlled experiments published in a prestigious journal suggest a cause for why teenagers have more difficulty focusing their attention early in the morning than do younger children.
(Major Hint: I am rather partial to the phrase "alternative explanations")