There are many things we have learned in psychology to this day. Hopefully I will remember most of it five years from now. The concept I think that will stick with me the most is Pavlov's classical conditioning. When he showed that you can have an unconditioned stimulus and response to something and then produce a conditioned stimulus and response due to repeated exposure of both the unconditioned and conditioned stimulus. I think I will remember the experiment Pavlov performed with the dog and I would be able to apply it to other situations. I think I will remember it because classical conditioning can be applied to many different situations. Classical conditioning is used in everyday life. Examples include beer ads that use attractive women in them to try and help sell their beer. Classical conditioning is already used in everyday life so I think I will remember it 5 years from now.