Even when girls are performing as well as boys in math and science, they often have less confidence in their ability

Which of the following has not been proposed as a biological substrate of personality?

A) circadian rhythms B) arousal level C) neurotransmitters D) cardiovascular reactivity

After reading an announcement soliciting research participants, Dan agrees to take part in a study involving a polygraph. Which measures are likely to be used?

a) brain waves, breathing rate, heart rate b) brain waves, galvanic skin response, and heart rate c) breathing rate, heart rate, and galvanic skin response d) brain waves, breathing rate, and galvanic skin response