Table 1 Descriptive item analysis.

From: Perceptual correlates of successful body–prosthesis interaction in lower limb amputees: psychometric characterisation and development of the Prosthesis Embodiment Scale

Item #

Item label

Meana

SD

Mediana

IQR

Diff.

DP

1

Ownership

1.37

1.88

2.00

3.00

0.73

0.83

2

Belongingness

1.90

1.55

2.00

1.00

0.82

0.73

3

Affiliation

1.39

1.79

2.00

2.00

0.73

0.83

4

Resemblance

− 0.97

1.96

− 1.50

4.00

0.34

0.45

5

Self-observation

− 0.25

2.01

0.00

4.00

0.46

0.58

6

Integrity

1.03

1.93

2.00

3.00

0.67

0.79

7

Completeness

1.15

1.81

2.00

3.00

0.69

0.82

8

Location

2.19

1.15

3.00

1.00

0.87

0.52

9

Posture

1.15

1.59

2.00

2.00

0.69

0.62

10

Touch

− 0.17

2.09

0.00

4.00

0.47

0.46

11

Volition

2.14

1.22

2.50

1.00

0.86

0.55

12

Controllability

2.33

1.06

3.00

1.00

0.89

0.55

13

Vividness

1.40

1.64

2.00

2.00

0.73

0.75

  1. SD standard deviation, IQR interquartile range, Diff. item difficulty, DP discriminatory power of item.
  2. aItem scores potentially range from − 3 to + 3.