The presence of individuals claiming to have dissociative identity disorder has been observed to ...

The presence of individuals claiming to have dissociative identity disorder has been observed to spread ______.
 
  a. on college campuses c. in inpatient psychiatric units
   b. in housing projects d. in Australia and New Zealand

Question 2

The MMPI-2 ______ the DSM criteria, thus scores __________ be used to establish a diagnosis.
 
  a. parallels; can
  b. is similar to; can
  c. is not tied specifically to; cannot
  d. correlates well with; can

Question 3

One way scientists control for subjects' expectations in experimental research
   involving medication is by using ______.
 
  a. selection factors c. dependent variables
   b. independent variables d. placebos