Which of the following is a hallucinogen that is being tested as an "anti­addiction" drug?

Jack, who has a schizotypal personality disorder, might come to work wearing

a. the uniform assigned to all employees in his job description. b. a shirt with a coffee stain on it. c. unclean clothes that are not appropriate for season. d. a suit and tie that are clean and well-pressed.

A psychologist wanted to see if people are more prone to seek the company of others when anxious than when calm

He randomly assigned half of his participants to an anxiety group and then told them that, as part of the study, they would receive electric shocks. He did not frighten the other group of participants. Finally, he recorded how many participants in each group chose to be "tested" in a group setting and how many chose to be "tested" alone. In this study, the group that was NOT frightened would be called the ____________ group. a) experimental b) control c) placebo d) test