Tool/Memory and Learning/No. 0249
Deliberate Practice
Deliberate practice is structured training aimed at specific skill weaknesses through focused tasks, feedback and repeated correction. Formalized by K. Anders Ericsson and colleagues in 1993, it involves teacher guidance and differs from mere repetition or practice of skills already mastered.
- Evidence
- Well established
- Read
- 6 min
- Links
- 11 connections
- Useful when
- Habits and self-control · Judging people and hiring · Learning and memory
01You've seen this when…
- in life
You play tennis every Saturday, but your backhand keeps landing short. Today, your partner feeds you the same shot while you adjust your contact point and track where the ball lands.
- at work
Your presentations regularly lose people at the financial forecast. You focus your next rehearsal on that slide, explaining it to a colleague and asking them to describe the forecast back to you.
- out in the world
At a community orchestra rehearsal, the conductor stops at a difficult entrance. The players repeat just that transition at a slower tempo, then bring it back into the piece.
02The idea
Doing something often can make it feel easier while leaving your performance largely unchanged. You become fluent at the parts you already know and find ways around the parts you have yet to master.
Deliberate practice interrupts that routine. You identify a specific weakness and choose a task that exposes it. Then you get information about the result and change your next attempt. The point is not to accumulate repetitions but to make corrections that improve performance.
Good practice has three features: a clear standard, a challenge you cannot yet meet consistently, and feedback you can act on. A teacher might notice that a pianist’s uneven passage comes from one awkward fingering, then prescribe an exercise for that movement rather than another run through the piece.
Practice in a field with established training methods meets the strict research definition when a qualified teacher designs or guides it. Self-directed exercises can use the same principles, though a focused session must meet those requirements to qualify.
It also differs from overlearning, which means continuing after you have mastered something. Overlearning can help retain a skill. Deliberate practice targets something you haven’t mastered yet.
03How to use it
- Define the result you want. Define your ambition in terms of an observable performance. For a presentation, aim for listeners to correctly explain your recommendation and its main uncertainty.
- Find the limiting weakness. Review a recording, inspect errors, or ask a capable teacher to diagnose the problem. The part that feels difficult may differ from the one holding you back.
- Choose a narrow task. Work on the troublesome transition, calculation, or explanation. Set the difficulty so you make some errors but can understand and correct them. This resembles working within your zone of proximal development.
- Get informative feedback. Use a coach, an answer key, a recording, or a reliable performance measure. A score tells you whether you improved; a diagnosis tells you what to change.
- Correct, then repeat. Change one relevant feature and try again. If you keep making the same error, change the exercise or seek help to break the pattern. Keep sessions short enough to maintain attention, and separate them with rest; spaced practice generally supports retention better than cramming.
- Test the whole skill again. Put the corrected part back into a realistic performance, preferably after a delay. Track whether the improvement survives without prompts. This checks learning transfer by testing success beyond the drill.
04A worked example
In a memory-training experiment reported in 1980, researchers worked with a college student identified as S.F. He began with a digit span of about seven: roughly the number of digits he could hear and immediately repeat in order. After more than 230 hours of practice, he could recall sequences of 79 digits.
What it looks like An ordinary person acquiring a vastly larger short-term memory through sheer repetition.
What’s actually going on S.F. drew on his experience as a runner to turn groups of digits into familiar running times. He retrieved those groups through an organized system he developed. The researchers repeatedly tested his performance and examined his strategies. As the sequences grew, he refined how he encoded and retrieved them. His improvement was specific: it did not produce a comparable increase in his ability to recall letters.
What made it work S.F. practiced a precisely measured task with repeated feedback while developing increasingly effective strategies suited to that task. The hours mattered because of what happened during them. This experiment helped lay the groundwork for the later account of deliberate practice. It also shows a boundary: becoming exceptional at one trained task can leave general-purpose ability unchanged.
05When to reach for it
06When it misleads
- Hours become the target. Logging practice time says little about its quality. The popular 10,000-hour rule falls short as a universal threshold, promise, or prescription.
- Effort becomes proof of improvement. Performance improvement requires evidence beyond exhaustion and frustration. Use a later test under realistic conditions to calibrate your judgment.
- The feedback is noisy or misleading. A salesperson can improve a conversation and still lose the deal. Use recordings and expert review across multiple attempts so your lessons rest on more than one outcome.
- You perfect the drill but neglect the job. Performance on the job may require choosing what to do, coordinating with others, or adapting under pressure. Practice both those demands and isolated movements.
- Practice is treated as a complete explanation of expertise. A 2014 meta-analysis found that reported deliberate practice explained a portion of the performance differences across several fields. Ericsson later challenged whether many included studies measured deliberate practice as originally defined. Definitions, retrospective hour estimates, and causal interpretation remain disputed.
- Every session becomes corrective work. Games, exploration, and enjoyable repetition serve other purposes. They can sustain motivation and reveal possibilities. Deliberate practice is one part of development. Turning a hobby into training remains a choice.
07Roots
At a music academy in Berlin, K. Anders Ericsson and his colleagues compared violin students whom teachers rated at different performance levels. The students all played the same instrument, so the researchers looked at what they actually did to become better.
Students reconstructed their earlier practice histories and kept diaries of current activities. The researchers distinguished ordinary musical activity from demanding solitary practice intended to improve performance. More accomplished groups reported more accumulated practice of this kind. Related work with pianists helped develop the argument beyond one instrument.
Ericsson, Ralf Krampe, and Clemens Tesch-Römer brought this work together in their 1993 paper on expert performance. Earlier training studies, including S.F.’s digit-memory experiment, had shown how specific skills could change dramatically. Their account expanded the explanation of expertise beyond possessing talent, emphasizing the activities through which it develops. The music comparisons were observational, leaving open whether practice alone caused every difference.
The idea traveled into coaching, education, and professional training. Popular accounts made accumulated hours its most memorable feature. That simplified the original point: deliberate practice is defined by how the work is designed to change performance.
08How solid is this?
Structured practice with useful feedback improves specific trained skills. How much accumulated deliberate practice explains expert performance is disputed, partly because studies define and measure it differently; it is not a complete explanation of expertise.
09Connections
- Often confused withOverlearning
- Helps counterPlateau in Learning, Dunning-Kruger Effect
- Part ofZone of Proximal Development
- See also Circle of Competence, Worked-Example Effect, Spacing Effect, Calibration, Learning Transfer, Evaluation Apprehension, Metacognition
+ 1 more in the list
10Origin and sources
K. Anders Ericsson, Ralf Krampe, and Clemens Tesch-Römer formalized deliberate practice in 1993, drawing on studies of musicians and earlier research on trained performance.
- [1]Ericsson, K. A., Krampe, R. T., & Tesch-Römer, C. (1993). The role of deliberate practice in the acquisition of expert performance. Psychological Review, 100(3), 363–406.
- [2]Ericsson, K. A., Chase, W. G., & Faloon, S. (1980). Acquisition of a memory skill. Science, 208(4448), 1181–1182.
- [3]Macnamara, B. N., Hambrick, D. Z., & Oswald, F. L. (2014). Deliberate practice and performance in music, games, sports, education, and professions: A meta-analysis. Psychological Science, 25(8), 1608–1618.
- [4]Ericsson, K. A., & Harwell, K. W. (2019). Deliberate Practice and Proposed Limits on the Effects of Practice on the Acquisition of Expert Performance: Why the Original Definition Matters and Recommendations for Future Research. Frontiers in Psychology, 10, 2396.
Suggest an edit· Updated 2026-10-02