Fixed effect

Intercept

7.02**

0.16

1.14**

0.16

1.25**

0.15

0.03**

0.03

Belief (centered)

0.27**

0.13

0.30**

0.10

−0.35**

0.11

−0.01**

0.07

Gender (female = 0, male = 1)

−0.32**

0.16

0.01**

0.11

0.05**

0.13

−0.05**

0.08

Condition: Water (no = 1, yes = 1)

−0.01**

0.19

−0.10**

0.13

−0.17**

0.16

0.07**

0.10

Condition: No drink (no = 1, yes = 1)

−0.30**

0.20

−0.28**

0.14

−0.39**

0.16

0.17**

0.10

Condition: Water

× Belief

−0.14**

0.22

−0.18**

0.17

−0.05**

0.20

−0.05**

0.13

Condition: No drink

× Belief

0.42**

0.20

0.16**

0.15

−0.03**

0.17

−−0.13**

0.11

Pre Friendliness

0.68**

0.07

Pre Vigor-Activity

−0.67**

0.07

Pre Tension-Anxiety

0.43**

0.05

Random effect

Dyad

0.09

< 0.00

< 0.00

0.003

Residual

0.55

<0.36

<0.48

0.19

AIC (null model)

319.18

324.62

350.83

211.60

AIC

306.38

246.89

280.63

179.14