ABSTRACT

W" hen a stimulus exerts control over a response we say that the individual is showing a discrimination or that the individual is discriminating between that stimulus and other stimuli. Stimulus discriminations vary in sharpness and breadth; that is, they may range from fine to gross discriminations between stimuli. Stimulus generalization is the opposite of stimulus discrimination in the sense that the less sharp or fine a stimulus discrimi­ nation is, the more generalization there is.