What percentage of teenagers experience major depressive disorder?
A. 52 percent
B. 35 percent
C. 24 percent
D. 3 percent
Answer: D
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A difference between Major depressive disorder and Persistent depressive disorder is
a. MDD requires that symptoms persist for one year while for PDD, symptoms must be present for two years. b. Symptoms are present for a longer period of time in MDD versus PDD. c. Symptoms are more severe and persist for a longer period of time in PDD. d. Symptoms are more severe and persist for a shorter period of time in MDD.
Which of these is NOT a weakness of the cross-sectional research design?
a. Cohort effects may confound the results. b. Age effects may be present. c. Development of individual children is not reported. d. It may be difficult to recruit enough children to fill the various age groups.
A recording of neural activity detected by electrodes is called an electroencephalogram
Indicate whether this statement is true or false.
Which of the following is NOT cited by your textbook as a possible explanation for the apparent effectiveness of CAM treatment, including homeopathy?
A) The symptoms of many physical conditions come and go, so a treatment may appear to be effective when the symptoms have simply diminished. B) A condition may have been diagnosed as being more severe than it really was in the first place. C) The treatment may be interacting with some other valid medical intervention to cause a faster amelioration of symptoms. D) People perceive that the treatment has been effective because they have no evidence to counter that belief.