👉 In the context of psychology, "coeffect" refers to a phenomenon where an external stimulus (often the result of another stimulus) affects not only one individual but also influences or interacts with the behavior of others. This can be described as a direct influence on the individual's reaction to the stimulus. For example, if you are given a list of items and asked to choose which ones to include in your shopping cart, and then another item is added to that list, it is possible for this external