What type of deficiency causes Korsakoff's syndrome?

The independent variable in this experiment was

(a) whether or not the subject lied to the incoming subject (b) whether or not they took the money (c) their rating of how interesting the experiment was (d) whether the incoming subjects did the experiment or left (e) the amount of money, $0, $1 and $20

Which of the following is FALSE regarding the research on posttraumatic stress disorder?

a) PTSD can cause cognitive problems. b) Posttraumatic stress disorder can be triggered by an anniversary of the traumatic event. c) Suicidal thoughts and behavior are sometimes associated with a diagnosis of posttraumatic stress disorder. d) Those with a delayed onset of posttraumatic stress disorder are likely feigning the disorder for attention and time off of work.