What is retrieval practice and why is spacing beneficial?

• A. Retrieval practice is actively recalling information; spacing increases effort and strengthens memory, improving retention.
• B. Retrieval practice involves rereading notes; spacing reduces effort and impairs recall.
• C. Retrieval practice is massed practice in one session; spacing has no effect on retention.
• D. Retrieval practice is cramming; spacing decreases retrieval cues.

Answer: (A)

Retrieval practice is actively recalling information from memory, not just rereading or reviewing notes. When you test yourself and retrieve facts or concepts, you strengthen the memory trace and improve your ability to recall it later, more so than passive study.

Spacing means spreading study sessions over time rather than cramming in one sitting. This introduces longer intervals between retrieval attempts, which makes recall more effortful and signals the brain to consolidate the memory more robustly. Over time, this leads to stronger, more durable learning and better transfer to new situations.

Rereading is passive and doesn’t engage retrieval in the same way; spacing does not impair recall—in fact, it generally enhances retention. Massed practice and cramming are opposite of spacing, offering less durable learning.