you should present a cogent argument based on your critical analysis of the questions posed, using appropriate psychological terminology. it is not enough to answer a question by merely listing facts. rachel is studying the causes, consequences, and treatments of mental illness. she samples 100 people diagnosed with generalized anxiety disorder. she provides each individual in her sample with either a new untested drug, a placebo, or a nocebo (which occurs when a person expects negative side effects of a medication). rachel measures sympathetic nervous system arousal a week before and a week after the study. the results of the study appear in the following graph.