Classical conditioning is the conditional programming of an organism to respond to a conditioned stimulus that seeks to enhance and strengthen a certain behavior in an organism. This is achieved through the use of the classical conditioned stimulus or object that is presented with an unconditioned stimulus in an organism. Classical conditioning involves the use of a neutral stimulus to instill in an organism a classically generated behavior or response. Classical conditioning was first proposed by Ivan Pavlov, the founding father of behaviorism. Behaviorism was a study in psychology that was specifically concerned with the study of behavior and behaviorism and how behaviorism is achieved in humans. The theory of behaviorism was later put forward by JB Watson who argued that any behavior can be instilled in a child. Watson argued that any child can be classically conditioned to become anything or acquire any behavior. The study of classical conditioning involves presenting a conditioned stimulus to an animal or organism. There is no connection between the conditioned stimulus and the organism. The organism is then exposed to an unconditioned stimulus which is followed repeatedly by exposure to the conditioned stimulus a number of times until the organism learns to associate the conditioned stimulus with the unconditioned stimulus to produce a conditioned response even in the absence of an unconditional response. In the process it was discovered that the organism elicited an unconditioned response upon exposure to the conditioned stimulus. The organism was also found to associate the conditioning with other related objects. Thus stimulus generalization occurs as a result of exposure to stimulus genres… half of the paper… behavior in children. In the case study involving Mavis, who has always loved playing "fetch" with the Great Dane “angus” is a great example of classical conditioning. Mavis in this case experienced a psychological change in behavior. His fear of an accidental dog bite was generalized to other dogs. His generalization of dogs as hostile and harmful would transcend to other dogs that are not actually harmful, this is known as stimulus generalization due to classical conditioning. Classical conditioning is the primary motivator and behavioral shaper. Higher order conditioning would lead to classical conditioning where an organism is conditioned to generalize the stimulus closely related to the conditioned behavior. This will lead the child, Marvis, to be afraid of all pets and four-legged pets of the cat family.