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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