According to the presenters, preventative medication should never be used to lower a predisposed person’s risk of developing PTSD.

A reinforcer that adds something rewarding to a situation is a(n) ______ reinforcer

a. positive c. primary b. additive d. secondary

In negative reinforcement, the ______ of a(n) ______ stimulus follows a response and changes the likelihood of that response reoccurring

a. onset; aversive c. termination; aversive b. onset; pleasant d. termination; pleasant