A critical difference in prospective and retrospective memory is that: a) retrospective memory is ...

A critical difference in prospective and retrospective memory is that:
 
  a) retrospective memory is explicit and prospective memory is implicit.
   b) in retrospective memory, there is typically an explicit cue to remember; in prospective memory there isn't
   c) retrospective memory requires that a person remember to remember; prospective memory doesn't
   d) only retrospective memory plays a role in action slips; prospective memory isn't involved.

Question 2

A subject is given a word fragment completion test in which 15 are fragments of words seen previously and 15 were fragments of words not seen previously.
 
  Of the 15 previously seen words, the subject completes 9 successfully (60). Of the 15 previously unseen words, the subject completes 6 successfully (40). What is the priming in this experiment?
   a) 10
   b ) 20
   c) 30
   d) 50