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Table 2 Models describing variation in response variables

From: Repeatability of endocrine traits and dominance rank in female guinea pigs

Response variable Fixed effects Estimate SE df t value P
Rank index (Intercept) 0.700 0.086 9.123 8.128  
Mass 0.002 0.0007 9.938 2.599 0.027
Age 0.007 0.003 8.651 2.079 0.069
Measurement  − 0.411 0.132 9.947  − 3.122 0.011
Group 0.073 0.092 8.196 0.787 0.454
Change in body weight (absolute difference) (Intercept) 1.689 0.362 10.140 4.663  
Cortisol R2 0.0001 0.0003 16.160 0.298 0.769
Age 0.014 0.013 8.777 1.147 0.282
Measurement  − 0.624 0.552 11.100  − 1.129 0.283
Group 0.762 0.391 8.949 1.951 0.083
  1. Bold indicates significant values (p < 0.05); italics indicates trend (0.05 ≤ p < 0.1). N = 24 observations, 12 individuals for both models. The reference category for measurement is the second measurement