Always generate a guess before receiving the correct answer
Before looking up any fact or asking for a solution, produce your best guess — even if you’re confident it’s wrong.
Key takeaways
- What it is: Before looking up any fact or asking for a solution, produce your best guess — even if you’re confident it’s wrong.
- Why it works: A guess activates memory networks related to the question. When the correct answer then arrives, it is encoded against the background of the activated-and-failed guess, creating a stronger prediction error signal. This signal marks the correct answer as important to remember and drives deeper processing. Research by Kornell et al. showed that even when guesses were wrong 100% of the time, retention of the correct answer was better than in a study-only condition.
- Evidence: Backed by randomized trials / meta-analyses.
- Avoid: Treating the guess as a commitment ("I was wrong, I’m bad at this") rather than as a deliberate encoding tool — the emotional response to being wrong can short-circuit the memory benefit.
Why it works
A guess activates memory networks related to the question. When the correct answer then arrives, it is encoded against the background of the activated-and-failed guess, creating a stronger prediction error signal. This signal marks the correct answer as important to remember and drives deeper processing. Research by Kornell et al. showed that even when guesses were wrong 100% of the time, retention of the correct answer was better than in a study-only condition.
How to do it
- 1Before looking anything up or receiving any explanation, write or say your best answer to the question.
- 2Rate your confidence 0–100%.
- 3Then receive the correct answer.
- 4Note which items you were confidently wrong about — the hypercorrection effect makes these especially well retained.
What the evidence says
RCT / meta-analysisKornell, Hays & Bjork (2009) showed that generating errors followed by corrective feedback produced better retention than studying correct answers directly, even for general-knowledge items where guesses were rarely correct.
Honest caveat: The errorful learning benefit depends critically on receiving correct feedback promptly. Errors without correction can embed false memories rather than enhance true learning.
- — Kornell, Hays & Bjork (2009), Unsuccessful retrieval attempts enhance subsequent learning, Journal of Experimental Psychology: Learning, Memory, and Cognition
Common mistake
Treating the guess as a commitment ("I was wrong, I’m bad at this") rather than as a deliberate encoding tool — the emotional response to being wrong can short-circuit the memory benefit.
IX Coach asks you to commit to an answer before presenting information, then uses the contrast between your guess and reality to anchor the correct answer in memory more effectively.
Practice this with IX Coach →