Samuel Cannot Leave for Work Without Going Back into His

Multiple Choice

Samuel cannot leave for work without going back into his house and making sure that he has taken all of his writing materials. He does this several times before he allows himself to start the car and drive to work. He is frequently late for work because he is so unsure about remembering everything. Samuel is displaying:

A) agoraphobia.
B) an obsession.
C) a checking compulsion.
D) nonpathological caution.