Which of these individuals may need professional for substance abuse?
a. since diane changed schools, she has become the opposite of the extrovert she once was.
b. claire no longer hangs out with her old friends and always looks tired and distracted.
c. jeremy tried marijuana for the first time at a party and lied about it to his friends.

Which statement is false? a. an extinction burst is the complete cessation of the target behavior after the extinction procedure has started. b. extinction procedures should not be used with behaviors that cause serious injury to the subject. c. if the behavior analyst does not have the ability to control the subject's access to reinforcement, an extinction procedure should not be implemented. d. spontaneous recovery of the target behavior will be short-lived, as long as the extinction procedure remains in effect