Table 1 Descriptive statistics for all experiments.

From: Humans judge faces in incomplete photographs as physically more attractive

Experiment

Modification

M

SD

M difference

SE

95% CI

1 - Positivity Bias effect

Aggregated Participants: attractiveness judgements

Original

4.81

1.07

   

Small

5.06

1.01

0.25***

0.06

[0.13, 0.36]

Blurred

5.27

1.07

0.46***

0.06

[0.35, 0.57]

One-third

5.73

1.19

0.92***

0.05

[0.81, 1.02]

Male Participants: attractiveness judgements

Original

4.77

1.09

   

One-third

5.72

1.14

0.95***

0.05

[0.85, 1.06]

Female Participants: attractiveness judgements

Original

4.87

1.09

   

One-third

5.74

1.24

0.87***

0.06

[0.75, 0.98]

Aggregated Participants: warmness judgements

Original

5.19

0.83

   

Small

5.01

0.72

−0.18***

0.05

[−0.28, −0.09]

Blurred

5.09

0.88

−0.10**

0.04

[−0.18, −0.01]

One-third

5.58

0.88

0.38***

0.04

[0.30, 0.47]

Aggregated Participants: knowledgeableness judgements

Original

5.89

0.54

   

Small

5.79

0.47

−0.10**

0.04

[−0.17, −0.03]

Blurred

5.7

0.53

−0.18**

0.03

[−0.25, −0.12]

One-third

6.3

0.53

0.41***

0.03

[0.36, 0.47]

2 - Replication

Original

48.4

11.42

   

Half

50.45

11.83

2.05***

0.45

[1.15, 2.94]

Incomplete

51.31

10.34

2.91***

0.4

[2.11, 3.70]

Mirror-reversed

38.28

12.66

−10.12***

0.62

[−11.34, −8.90]

3 - Specific to Human Faces

Dog Faces

Original

71.03

8.47

   

Incomplete

67

7.18

−4.02***

0.82

[−5.65, −2.40]

Landscapes

Original

55.62

15.44

   

Incomplete

54.44

14.65

−1.18

0.82

[−2.88, 0.44]

Flowers

Original

66.5

10.68

   

Incomplete

62.7

10.61

−3.8***

0.82

[−5.43, −2.18]

4 – Sensitivity to

No Expectations

Expectations

Original

41.2

11.61

   
 

Incomplete

48.28

10.71

7.08***

0.45

[6.18, 7.98]

 

High Expectations

 

Original

47.51

11.87

   
 

Incomplete

50.51

11.16

3***

0.39

[2.21, 3.78]

 

Low Expectations

 

Original

43.01

12.41

   
 

Incomplete

44.98

9.84

1.97***

0.49

[1.00, 2.93]

5 – Ruling out Similarity

Original

33.8

4.14

   

Incomplete

34.06

2.76

0.25

0.23

[−0.20, 0.71]

6 – The role of Typicality

Aggregated typical (experiments two and four)

Original

52.95

8.86

   

Incomplete

55.17

8.47

2.22***

0.47

[1.28, 3.15]

Aggregated atypical (experiments two and four)

Original

39.55

9.52

   

Incomplete

44.97

9.82

5.42***

0.47

[4.48, 6.35]

7 – Disrupting the positivity bias

Upright

Original

45.18

11.44

   

Incomplete

48.72

10.64

3.54***

0.4

[2.73, 4.34]

90-degree-rotated

Original

49.63

11.48

   

Incomplete

49.94

8.53

0.31

0.48

[−0.63, 1.26]

Inverted

Original

50.11

11.37

   

Incomplete

50.09

10.39

−0.02

0.53

[−1.06, 1.02]

  1. Means, Standard Deviations, Means of differences, Standard Error on the Means, and Confidence Intervals on the Means, as a function of the conditions in all seven experiments. **Stands for p value = <0.05 and ***p value = <0.001.