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Table 3 Rotated pattern matrix for four-factor solution from exploratory factor analysis

From: A quantitative measure of restricted and repetitive behaviors for early childhood

Item heading

Repetitive motor

Ritual and routine

Restricted

Self-directed

Torso

0.93

0.04

−0.01

0.01

Head

0.88

−0.02

−0.01

−0.03

Legs

0.85

−0.06

0.03

−0.05

Arms, hand, or fingers

0.84

0.07

0.03

−0.04

Arms/hand/fingers on surfaces

0.81

0.00

0.02

0.03

Locomotion

0.79

0.00

0.00

−0.02

Object use

0.72

−0.11

0.05

0.03

Vocalizations

0.70

0.01

0.09

0.06

Mouthing objects

0.50

0.04

−0.03

0.15

Play

−0.02

0.78

−0.02

0.00

Daily routine

−0.04

0.73

−0.04

0.06

Change in others

0.01

0.66

−0.02

0.03

Mealtime

0.06

0.61

−0.01

0.03

New places

−0.09

0.58

0.10

0.05

Bedtime

0.05

0.54

0.06

−0.06

Social interactions

−0.05

0.53

0.10

0.09

Interruptions

0.02

0.40

0.13

0.13

Visual inspection

−0.03

−0.08

0.76

0.09

Fascination with movement

0.02

−0.13

0.71

0.18

Interest in parts of objects

−0.04

−0.08

0.67

0.16

Limited and intense interest

0.04

0.05

0.48

0.04

Stillness

−0.01

0.10

0.47

−0.14

Sensory interests

0.09

0.13

0.45

−0.01

Media use

−0.01

0.22

0.40

−0.08

Object attachment

−0.02

0.14

0.40

−0.02

Placement of objects

0.04

0.32

0.35

−0.19

Arranging toys

0.13

0.08

0.32

−0.18

Hits self with object

0.01

0.05

−0.03

0.73

Hits self with body part

0.09

0.08

−0.20

0.72

Hits self against surface

0.01

0.01

0.02

0.63

Pulls own hair

−0.02

0.14

0.04

0.32

Scratches, pinches, or pokes self

0.01

−0.09

0.20

0.32

Bites self

−0.05

0.02

0.10

0.19

Skin picking

0.00

0.11

0.07

0.14

  1. Italics signify items belonging to a common factor