For each of the following situations, invent at least three hypotheses aimed at explaining what went wrong or at solving the problem. Then, for each hypothesis, describe one or more experiments or inquiries that would confirm or disconfirm the hypothesis.
Which of the following disorders do Americans report most frequently?
a. Schizophrenia
b. Mood disorders
c. Posttraumatic stress disorder (PTSD)
d. Obsessive-compulsive disorder (OCD)
e. Attention-deficit/hyperactivity disorder (ADHD)