Which term refers to an environmental event that increases the value or effectiveness of a consequence?

The term that refers to an environmental event that increases the value or effectiveness of a consequence is "Establishing Operation." This concept is foundational in behavior analysis as it describes conditions that make certain outcomes more reinforcing or punishing. For example, if a person has not eaten for a while, food becomes a more powerful reinforcer due to the state of deprivation created by hunger. Thus, establishing operations are crucial in understanding how motivation affects behavior and can significantly influence the likelihood of a behavior being emitted in the future.

In contrast, other terms like abolishing operation refer to environmental events that decrease the effectiveness of a consequence, while motivating operation is a broader category that encapsulates both establishing and abolishing operations. The term "requesting operation" does not apply in this context, as it is not established in the literature in the same way as the other terms.