Producing an effect can be defined as the ability to create a desired outcome or result. The term is often used in psychology, where it is known as operant conditioning. Operant conditioning is a type of learning in which an individual's behavior is modified by its consequences, such as reward or punishment. It is based on the idea that behavior is determined by its consequences, and that an individual will repeat a behavior if it is rewarded and avoid it if it is punished. In this context, operant is the 7-letter solution to the crossword puzzle.