Final answer:
Massed practice refers to concentrated study sessions with no breaks, such as studying for an exam in one four-hour session rather than multiple shorter sessions.
Step-by-step explanation:
An example of massed practice is devoting all of your studying for your psychology exam into one four-hour session, rather than four one-hour sessions. Massed practice is characterized by attempts to study or learn something in a short period of time, usually in one go, without taking breaks, as opposed to distributed practice which involves spreading out learning over a period of time with shorter sessions. According to memory researchers, distributed practice tends to be more effective for long-term retention than massed practice, which can often lead to quick forgetting.