Authors: Macnamara, B. N.; Moreau, D.; Hambrick, D. Z. · Year: 2016 · Tier: meta · DOI/URL: https://doi.org/10.1177/1745691616635591 (Perspectives on Psychological Science 11(3), 333–350)

Links to claims

Supports (1)

Source note

Claim	Basis
C16	Sports meta: deliberate practice 18% overall, 1% among elite athletes; C16 kill-condition test survived 2026-10-27.

Syntes: Macnamara, Moreau & Hambrick (2016) — deliberate practice explains 18% of sports performance variance, and only 1% among elite athletes

Källa: Macnamara, B. N., Moreau, D. & Hambrick, D. Z. (2016). The Relationship Between Deliberate Practice and Performance in Sports: A Meta-Analysis. Perspectives on Psychological Science 11(3), 333–350. https://doi.org/10.1177/1745691616635591

Verified content

[full text] 52 independent samples, 63 effect sizes, N = 2,765; deliberate practice explained 18% of variance in sports performance (95% CI 12–25%), leaving 82% unexplained.
[full text] Skill-level moderator significant, Q(2) = 7.04: subelite 19% (r = .44), mixed 29% (r = .54), elite only 1% (r = .11, p = .50).
[full text] Internally paced sports 41% (r = .64); externally paced 17% (r = .42); still below half.

Why it is in the library

A domain-focused kill-condition test of C16 (majority share): sports as a domain, with the elite split that Macnamara et al. 2014 did not report. Kill fails.

Added 2026-10-27 by the project (extra attack pass). [full text] = read in the full text.

Metadata as recorded

The original files (PDF or abstract) are kept in the project archive and are not published here.