Darryl, age 15, likes this drug because it produces an intense and immediate, but brief, high, and is smoked. The drug, derived from the coca plant, is most likely ____

Tragically, Russell suffered a serious head injury in an automobile accident. The physicians informed Russell's wife that there was significant swelling occurring in his brain, and that there was a very real risk

that as the brain swelled it would start to expand through the large opening in the skull where the spinal cord connected to the brain. What is the name of the opening that Russell's brain was at risk of expanding into? a. Corpus callosum b. Cingulate gyrus c. Neocortex d. Foramen magnum

Which of the following is a limitation of the clinical, or case study, method?

A) Investigators cannot assume that their conclusions apply, or generalize, to anyone other than the individual studied. B) Information collected often lacks descriptive detail. C) It does not provide evidence about the individual's current functioning. D) It requires intensive study of participants' moment-by-moment behaviors.