[3/23/2018] Corrections to Hambrick, D. Z., Burgoyne, A. P., Macnamara, B. N., & Ullén, F. (2018). Beyond born versus
made. Annals of the New York Academy of Sciences, based on corrected analyses for Macnamara, Hambrick, & Oswald (2014), and
Macnamara, Moreau, & Hambrick (2016):
p. 2: "However, deliberate practice explained less than half of the variance in music performance under
a range of reliability assumptions—for example, 47% assuming “acceptable” reliability of 0.70 for both measures (Fig. 1C)."
(Correction in bold).
p. 2: "A recent meta-analysis of sports studies found that, overall, deliberate practice explained 20% of the variance in
expertise, but explained less than 1% of the variance in studies that compared elite performers to “sub-elite” performers
(e.g., international- to national-level athletes)." (Corrections in bold.)
Figure 1C: Percentages should be 47% (Deliberate Practice) and 53% (Other).
[10/18/2018] Please see the corrigenda for
Burgoyne et al. (2016)
Macnamara et al. (2014).