Watson and Rayners Little Albert study is a good example of evidence which supports classical conditioning. They were able to condition a previously fearless baby into becoming scared of certain stimuli (including various furry animals) by showing pictures of them paired with loud noises. This shows classical conditioning can be used to create a phobia. Moreover, after the study, Albert developed phobias of objects that shared characteristics with the furry animals (e.g. a fur coat), proving generalisation, and 10 days after conditioning, his fear of the rat was much less marked, proving extinction. This experimental evidence supports classical conditioning and Pavlov's other ideas surrounding it.