1. stereotypes
   1. people often rely on stereotypes for mental shortcuts
   2. Gordon Allport described streotyping as "the law of least effort"
   3. energy-saving devices
   4. used when people ability to judge is diminished
   5. usually we stereotype unkown things
2. Descrimination
   1. In classical conditioning, the ability to differentiate between a conditioned stimulus and other stimuli that have not been paired with an unconditioned stimulus.
      1. For example, if a bell tone were the conditioned stimulus, discrimination would involve being able to tell the difference between the bell tone and other similar sounds.