Get immediate, specific feedback

Shorten the gap between an attempt and knowing exactly what was wrong.

Why it works

Practice without feedback grooves in errors as deeply as successes, because you cannot correct what you cannot see. Immediate, specific feedback closes the loop while the attempt is still fresh in memory, so the correction attaches to the right action. The faster and more precise the feedback, the faster the skill converges.

How to do it

1. For each practice block, define what "correct" looks like before you start.
2. Find the fastest available feedback source — a coach, a recording, a checker, a rubric.
3. Act on each piece of feedback in the very next rep rather than batching corrections for later.

Evidence

Feedback is a defining feature of deliberate practice in Ericsson’s framework, and the broader instructional literature consistently finds that timely, specific feedback improves skill acquisition more than effort alone. Kluger and DeNisi’s meta-analysis of over 600 effect sizes shows the direction is not guaranteed — roughly a third of feedback interventions actually depressed performance — which is why the task-focused framing Hattie and Timperley describe matters as much as the timing. (observational)

Not all feedback helps equally; vague or delayed feedback, or feedback aimed at the self rather than the task, can be neutral or harmful.

Sources

• Ericsson, Krampe & Tesch-Römer (1993), Psychological Review (feedback as a core requirement)
• Ericsson, K. A. (2008). Deliberate practice and acquisition of expert performance: A general overview. Academic Emergency Medicine, 15(11), 988-994.
• Kluger, A. N., & DeNisi, A. (1996). The effects of feedback interventions on performance: A historical review, a meta-analysis, and a preliminary feedback intervention theory. Psychological Bulletin, 119(2), 254-284.
• Hattie, J., & Timperley, H. (2007). The power of feedback. Review of Educational Research, 77(1), 81-112.

Common mistake

Practicing in a vacuum and assuming improvement, then discovering months later that you have been reinforcing the same flaw the whole time.