Males experience erections throughout the night. These erections occur about every

Justine has the ability to speak and knows the language. However, for more than six months she has

refused to speak to her teacher or any adult other than her parents. The best diagnosis for Justine is probably A) separation anxiety disorder. B) antisocial personality disorder. C) autism. D) selective mutism.

The study by Strachan and others (2002) found that subliminal cues regarding thirst influenced how much Kool-Aid participants drank only when

a. the participants had previously been given water to drink. b. they were given something to eat as well. c. they were high in the need for cognition. d. the participants were thirsty and water had been withheld.