Research support for the existence of a biological role in anxiety disorders comes from several imaging techniques. PET scans have revealed a difference in the function of ________ receptors of individuals who suffer from panic disorder
MRI images of OCD patients' brains have found ________ cortical thickness in areas that normally allow inhibition of behaviors.
a. serotonin; greater
b. serotonin; less
c. GABA; greater
d. GABA; less
Answer: a. serotonin; greater
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Dr. Martinez wants to know which exhibits children prefer at the new Children's Museum. To find out, she unobtrusively observes them to see which exhibits they choose to visit most and at which ones they spend the most time. Which type of research method does this represent?
a. naturalistic observation c. a longitudinal study b. the case study method d. a standardized test
In a mixed factorial design, the repeated measures factor is evaluated by comparing its variance with the variance of _____
a. the between subjects factor b. the interaction between the between subjects factor and the subjects within groups c. the subjects within groups d. the interaction between the repeated measures factor and the subjects within groups
Teenagers in Western cultures typically fall into which of Jean Piaget's stages of cognitive development?
A. Preoperational B. Sensorimotor C. Formal operational D. Concrete operational
How should a researcher handle outliers?
a) Delete them from the data set. b) Save them for a future analysis. c) Use a statistical program to handle them. d) Redo the experiment to correct any errors.