The difference between an enactment and role-playing analogue is that in the enactment analogue, ...

The difference between an enactment and role-playing analogue is that in the enactment
  analogue, the client:
 
  a) Acts out the problem with someone else portraying people relevant to the situation.
  b) Uses pre-coded categories to establish the baseline behaviors.
  c) Uses videotape equipment
  d) Interacts with people or objects that he or she actually has difficulty with.
  e) None of the above

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You can always tell if your data are autocorrelated by visual inspection.
 
  Indicate whether the statement is true or false

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When the B in an A-B consists of a package, the design allows you to determine which of
  the components is likely to have had the strongest effect.
 
  Indicate whether the statement is true or false