Leave deliberate blanks in your notes

Create partial notes and complete the missing words from memory before reviewing.

Why it works

A blank forces generation: the brain must search for and produce the target word rather than just recognize it. That search process creates a more distinctive, elaborated memory trace than reading does. The difficulty of the search, when it succeeds, is precisely what drives the advantage — easier retrieval produces smaller generation-effect benefits.

How to do it

1. While studying, write notes with key terms replaced by blanks or underscores.
2. Close the source and try to complete all the blanks from memory.
3. Only check the original after a genuine retrieval attempt, even a failed one.
4. For failed blanks, repeat the fill-in-the-blank process the next day rather than just rereading.

Evidence

Slamecka and Graf (1978) demonstrated that generating a word from a rule (synonym, antonym, rhyme, first letter) produced better recall than reading it — the foundational finding. The effect has replicated widely across paradigms. (rct)

The generation effect is strongest for isolated items; benefits are somewhat smaller and more variable when generating within connected text or complex sentences.

Sources

• Slamecka & Graf (1978), the generation effect: delineation of a phenomenon, Journal of Experimental Psychology: Human Learning and Memory

Common mistake

Making blanks for trivial words ("the", "and", "a") rather than for the conceptually critical terms — generation is only valuable when it targets the knowledge you actually need to retrieve.