Table 4 Summary of the statistical results obtained in the linear mixed-effects model (best model)
Fixed effects | Estimate | Std. Error | p Value |
|---|---|---|---|
(a) 50-kHz USV best model | |||
Intercept (control, Batch A) | 136.27 | 26.705 | < 0.001 |
Socially reduced | − 33.35 | 18.74 | 0.08 |
Kinetically reduced | − 8.59 | 18.77 | 0.64 |
Days | 3.09 | 0.742 | < 0.001 |
Order | 4.31 | 1.84 | 0.03 |
Batch B | − 25.56 | 24.51 | 0.31 |
Batch C | − 23.58 | 26.67 | 0.40 |
(b) 22-kHz USV best model | |||
Intercept (control, Batch A) | − 0.72 | 0.33 | 0.03 |
Days | 0.17 | 0.01 | < 0.001 |
Batch B | 2.13 | 0.45 | < 0.001 |
Batch C | − 0.01 | 0.45 | 0.99 |
(c) USV emission by contact periods best model | |||
Intercept (control, no contact) | 0.80 | 0.23 | 0.003 |
Socially reduced | − 0.38 | 0.32 | 0.26 |
Kinematically reduced | − 0.46 | 0.32 | 0.18 |
Ventral contact | 1.24 | 0.05 | < 0.001 |
Dorsal contact | 1.22 | 0.05 | < 0.001 |