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. Author manuscript; available in PMC: 2015 Mar 1.
Published in final edited form as: Anim Behav. 2014 Jan 16;89:23–30. doi: 10.1016/j.anbehav.2013.12.009

Table 2.

Repeatability for four temperament traits over 3 years (2–4 testing periods) in pigtailed macaques

Sociability Cautiousness Aggressiveness Fearfulness
Single measures ICC 0.54 0.53 0.28 0.42
95% CI for ICC 0.47–0.60 0.46–0.60 0.19–0.36 0.34–0.50
Within-test variance 0.40 0.40 0.30 0.25
Between-test variance 0.47 0.45 0.12 0.18
Mean correlation 0.48 0.45 0.28 0.42
95% CI for correlation 0.46–0.69 0.46–0.69 0.27–0.50 0.35–0.58

CI: confidence interval; ICC: intraclass correlation. Measures include ICC (Bell et al., 2009) and mean Pearson's correlation (Freeman & Gosling, 2010). N=293; estimated k for individuals is 2.66.