In psychology, discrimination refers to an organism’s ability to differentiate between a specific stimulus and similar ones but not identical stimuli.
This refers to the tendency for the conditioned response to be evoked by stimuli that are similar to the stimulus to which it was originally conditioned.
It’s when a desirable event or stimulus is presented as a consequence of a behavior and the behavior increases.
It’s when an undesirable event or stimulus is removed or prevented from happening as a consequence of a behavior and the behavior increases.