When Patricia almost stepped on a snake, she experienced physiological arousal, reacted, and felt fear simultaneously, which illustrates the __________ theory of emotion

The most likely reason for the increase in the number of children diagnosed with autism spectrum disorders is that

a. in the 1990s, autism was removed from the U.S. list of disabilities eligible for special education services. b. the rise has corresponded with the significant increase in the number of infants born with HIV. c. in the 1990s, Asperger syndrome was removed from the DSM-IV. d. there is now a broader definition for what used to be just autism.

A researcher designed an experiment to determine if consumption of caffeine results in increased level of motor activity. The study was done at 7 AM each day. A confounding variable could be

a. time of day. b. caffeine. c. level of motor activity. d. experimental design.