Table 3 Multilevel model analyses predicting mood: Fixed and random effects of time [h], time-squared [h²], sex, age [yrs], type of study, day, social and environmental context.

Model 1: Valence

Intercept

4.3

0.17

25.19 (418)

< 0.001

0.25

0.05

4.93

< 0.001

Time

-0.05

0.014

-3.76 (1874)

< 0.001

0.74

0.001

0.0003

3.44

0.001

Time-squared

0.003

0.001

3.8 (1614)

< 0.001

0.92

Length of bouts (30 min)^a

-0.04

0.09

-0.45 (259)

0.654

< 0.00

Day (weekday)^b

0.05

0.05

0.89 (149)

0.373

0.74

0.09

0.03

3.5

< 0.001

Age

0.01

0.005

2.14 (258)

0.034

0.72

Sex (female)^c

0.002

0.09

0.02 (249)

0.983

< 0.00

Social context (not-alone)^d

0.17

0.04

4.9 (160)

< 0.001

1.06

0.03

0.01

2.62

< 0.001

Environmental context (leisure)^e

0.33

0.05

6.4 (196)

< 0.001

3.69

0.11

0.03

4.07

< 0.001

Model 2: Energetic arousal

Intercept

3.64

0.2

18.43 (416)

< 0.001

0.17

0.06

2.69

0.007

Time

0.04

0.02

2 (2248)

0.046

0.58

0.001

0.0005

3.67

< 0.001

Time-squared

-0.003

0.001

-3.72 (1948)

< 0.001

0.90

Length of bouts (30 min)^a

-0.1

0.1

-0.99 (235)

0.326

0.08

Day (weekday)^b

-0.16

0.07

-2.21 (197)

0.029

0.32

0.2

0.05

4.51

< 0.001

Age

0.02

0.01

4.65 (235)

< 0.001

1.51

Sex (female)^c

-0.3

0.1

-3.6 (211)

0.002

0.96

Social context (not-alone)^d

0.24

0.05

4.94 (155)

< 0.001

0.22

0.08

0.03

3.06

0.002

Environmental context (leisure)^e

-0.22

0.06

-3.6 (211)

< 0.001

1.37

0.13

0.04

3.63

< 0.001

Model 3: Calmness

Intercept

4.29

0.16

27.29 (490)

< 0.001

0.24

0.04

5.59

< 0.001

Time

-0.06

0.01

-4.4 (3891)

< 0.001

0.07

Time-squared

0.003

0.001

4.5 (3863)

< 0.001

0.14

Length of bouts (30 min)^a

0.18

0.08

2.23 (290)

0.026

0.67

Day (weekday)^b

0.08

0.05

1.64 (141)

0.104

0.35

0.06

0.02

2.78

0.005

Age

0.01

0.004

2.27 (274)

0.024

1.21

Sex (female)^c

0.03

0.08

0.36 (265)

0.719

< 0.00

Social context (not-alone)^d

0.06

0.04

1.69 (166)

0.093

0.18

0.39

0.01

2.79

0.005

Environmental context (leisure)^e

0.27

0.05

5.32 (262)

< 0.001

1.72

0.12

0.02

4.87

< 0.001