What tactic is encouraged by the Retention Principle for improving memory recall?

The Retention Principle suggests that memory recall can be significantly enhanced through techniques that promote deeper learning. Spaced practice, which involves breaking up learning into multiple sessions spread over time, has been shown to improve long-term retention of information. This method allows for periods of rest in between study sessions, giving the brain time to consolidate the information.

Interleaving, on the other hand, refers to mixing different topics or types of problems during study sessions. This approach forces learners to continuously retrieve and apply their knowledge in varied contexts, which strengthens their understanding and ability to recall information.

Both spaced practice and interleaving align with research in cognitive psychology that highlights how varied and distributed study habits lead to better retention of material compared to massed practice or cramming, which can overwhelm the brain and encourage superficial learning. This makes the chosen tactic well-supported in the fields of learning and memory.