Table 4 Summary of linear mixed-effects models on the number of pumps that did not burst in Experiment 2.

From: Adaptation to recent outcomes attenuates the lasting effect of initial experience on risky decisions

Fixed effects

Estimate

SE

df

t-value

p-value

Model 1

(Intercept)

5.97

0.37

153.47

16.23

 < .001

Lucky

− 0.39

0.52

146.21

− 0.75

.454

Unlucky

− 1.96

0.53

169.20

− 3.67

 < .001

Balloon

0.13

0.04

522.23

3.45

.001

Lucky * Balloon

0.54

0.05

523.04

10.33

 < .001

Unlucky * Balloon

− 0.09

0.06

525.66

− 1.51

.131

Random effects

Variance

SD

   

[Participants] (Intercept)

2.63

1.62

   

Model 2

(Intercept)

6.59

0.33

98.98

20.25

 < .001

Lucky

1.01

0.46

96.90

2.19

.031

Unlucky

− 2.51

0.47

107.45

− 5.34

 < .001

Bin 2

0.04

0.26

522.47

0.14

.885

Lucky * Bin 2

3.25

0.34

523.45

9.50

 < .001

Unlucky * Bin 2

0.35

0.36

524.71

0.97

.332

Random effects

Variance

SD

   

[Participants] (Intercept)

2.51

1.58

   

Model 3

(Intercept)

6.01

0.39

106.60

15.33

 < .001

Lucky

0.08

0.56

108.90

0.14

.889

Unlucky

− 1.48

0.55

102.50

− 2.70

.008

Balloon

0.11

0.01

1621.00

12.01

 < .001

Lucky * Balloon

0.01

0.01

1621.00

0.60

.549

Unlucky * Balloon

0.06

0.01

1621.00

4.55

 < .001

Random effects

Variance

SD

   

[Participants] (Intercept)

3.76

1.94

   

Model 4

(Intercept)

6.92

0.41

125.62

17.04

 < .001

Lucky

− 0.01

0.58

134.67

− 0.02

.985

Unlucky

− 1.66

0.56

116.33

− 2.95

.004

Bin 2

− 0.78

0.27

1609.25

− 2.87

.004

Bin 3

0.57

0.26

1608.18

2.14

.033

Bin 4

1.37

0.25

1608.82

5.42

 < .001

Bin 5

1.99

0.26

1609.18

7.75

 < 001

Bin 6

1.77

0.30

1608.76

5.90

 < .001

Lucky * Bin 2

− 0.16

0.40

1609.67

− 0.40

.688

Unlucky * Bin 2

1.05

0.36

1608.60

2.90

.004

Lucky * Bin 3

0.68

0.39

1608.42

1.72

.086

Unlucky * Bin 3

0.76

0.35

1607.90

2.14

.032

Lucky * Bin 4

0.57

0.38

1608.82

1.50

.133

Unlucky * Bin 4

1.34

0.34

1608.33

3.96

 < .001

Lucky * Bin 5

0.13

0.38

1609.80

0.33

.743

Unlucky * Bin 5

1.52

0.35

1608.70

4.36

 < .001

Lucky * Bin 6

0.16

0.43

1608.68

0.36

.720

Unlucky * Bin 6

1.87

0.41

1608.38

4.55

 < .001

Random effects

Variance

SD

   

[Participants] (Intercept)

3.72

1.93

   
  1. Dependent variable in all models: Number of pumps on each balloon that did not burst. Model 1 and Model 2 were fit to the balloons of the initial phase, Model 3 and Model 4 were fit to the balloons of the subsequent phase. For a more detailed description of each model, see main text. With the treatment contrast, the reference level of a given factor was used to estimate the other levels. These were baseline condition and Bin 1. Significant effects are in bold. SE: standard error; SD: standard deviation.
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