Levels of Processing: Why Depth of Encoding Determines What You Remember

How does the depth at which you process information affect how well you remember it?

Craik and Lockhart’s (1972) levels of processing framework proposes that memory is a by-product of the type of processing performed on incoming information: shallow processing (appearance, sound) produces weak, short-lived traces, while deep processing (meaning, elaboration, connection to prior knowledge) produces strong, durable ones. The implication for learning is that how you engage with material matters more than how many times you see it.

Most forgetting is not about memory capacity — it is about encoding depth. Rereading notes creates shallow traces through perceptual familiarity; explaining a concept to someone else creates deep traces through semantic elaboration and self-generation. Craik and Lockhart gave this distinction a theoretical framework in 1972, and the implication has been replicated across decades of research: it is not how often you see something but what you do with it that determines whether it stays. The practices below operationalize depth-of-processing for everyday learning.

Practices

Process new information by its meaning, not its form

Ask what something means, how it connects to what you know, and why it matters — not just what it looks like or sounds like.

Elaborate new information with examples, images, and stories

Create a specific example, a mental image, or a story connecting new information to something already meaningful to you.

Explain the material to someone else — real or imagined

Teaching forces you to process at the deepest level: organizing information coherently, identifying gaps, and translating to another person’s perspective.

Link new information to your own life and identity

Ask how the new information applies to you personally — self-referential encoding is one of the deepest processing routes known.

Generate questions before reading to drive deep processing

Set specific questions you want answered before engaging with any material — questions activate deeper processing than passive reading.

Ground abstract concepts in concrete, physical instances

An abstract concept understood only abstractly decays faster than the same concept grounded in a concrete, sensory example.

Practice this with IX Coach

Reading about a practice changes nothing on its own. IX Coach turns these into a guided, adaptive routine — discerning where you are in real time and walking the practice with you, session after session.

Practice this with IX Coach

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