The brain and spinal cord make up the nervous system

In testing whether children are influenced by violence on TV, the best method would be:

a. observation b. an experiment c. asking their parents d. a survey

Which is an example of a SINGLE CASE design?

a) a study examining depression in large groups of people across several diverse occupations, looking for similarities in descriptions of depressive behaviors and treatment outcomes b) a study involving a positive correlation between age and anxiety c) a study setting a baseline phase for a subject's frequency of overeating before moving to a treatment phase, alternating between each phase to assess their impact on the behavior d) a study attempting to prove causation between education levels and the onset of dem