Periods of REM sleep alternate with periods of non-REM sleep in a cycle that recurs about every _______________ minutes

According to Beck, the depressed individual has a negative view of him- or herself, the world, and the future. These three perceptions are known as the

a) sociotropic triad. b) negative triad. c) cognitive triad. d) musturbatory triad.

Is treatment for drug addiction effective?

A. Only if the user wants it to work. B. Most studies do not show any effectiveness. C. Statistically, treatment does reduce crime and increase employment. D. Yes, more than half of those treated remain abstinent for more than a year.