Spaced repetition for language learning: FAQ
Plain answers to what people ask about spaced repetition before they commit to it: whether it actually works for languages, what the 2-3-5-7 method is, whether Duolingo uses spaced repetition, the real disadvantages nobody mentions, and whether it helps if you have ADHD. Each answer links to the fuller version if you want to dig in.
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The questions, answered
- Is spaced repetition effective for language learning? Yes. It is one of the most replicated findings in memory research.
- What is the 2-3-5-7 spaced repetition method? A fixed review timetable (days 2, 3, 5, 7). A rule of thumb, not a research result.
- Does Duolingo use spaced repetition? Yes, its own half-life regression model. But it is baked into one fixed course.
- What are the disadvantages of spaced repetition? Review debt, boredom, isolated-fact bias, and the work of making good cards.
- Can spaced repetition help with ADHD? It can make studying more manageable via short sessions. Not medical advice.
Ready to put it to work?
If spaced repetition sounds right but the manual-card grind is the part that always stops you, these pages compare the honest options: the full breakdown of how spaced repetition for language learning works, the best spaced repetition apps for language learning, and a spaced repetition app that builds its own cards. For a neutral primer on the method itself, the spaced repetition overview is a good start.
"People do not quit spaced repetition because it fails. They quit because of the overdue pile and the cards nobody wants to make. Take those away and the habit sticks."
Frequently asked questions
Does spaced repetition really work for learning a language?
Yes. The spacing effect is one of the best-evidenced findings in memory research, and vocabulary is the ideal case for it. Our full answer covers whether spaced repetition is effective for language learning.
What is the best spaced repetition app for languages?
One that schedules each card to your own recall and builds the cards for you, so the manual grind does not stop you. We compare the options on the best spaced repetition apps for language learning.
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