The contrast effect is a phenomenon in which people’s perceptions or judgments are influenced by the presence of other stimuli. This can happen when people compare the characteristics of one stimulus with those of another, and may lead them to perceive differences that are not actually present. For example, if you are shown two objects of different colors, you may perceive the colors as being more different from each other if they are presented side by side, rather than if they are presented separately. The contrast effect can lead to errors in judgment and decision-making, as it can cause people to perceive differences or similarities that are not actually present, and to make inappropriate or inaccurate judgments. To avoid the contrast effect, it is important to carefully evaluate the characteristics of each stimulus on its own, rather than comparing it to other stimuli, and to make judgments based on objective evidence rather than on the presence of other stimuli.
