Becker, J., Brackbill, D., & Centola, D. (2017). Network dynamics of social influence in the wisdom of crowds. Proceedings of the national academy of sciences, 114(26), E5070-E5076.
See Example.R. This script examines the effect of (a) accuracy/adjustment correlation (b) network centralization on both the error of the mean and individual error.
Findings: improvement in individual is remarkably robust.