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Table 4 Rotated pattern matrix for three-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
Torso 0.94 0.04 −0.11
Head 0.89 −0.03 −0.03
Legs 0.84 −0.08 0.00
Arms, hands, or fingers 0.84 0.06 0.00
Arms/hands/fingers on surfaces 0.81 0.00 0.03
Locomotion 0.78 0.00 −0.02
Object use 0.73 −0.11 0.06
Vocalizations 0.71 0.02 0.11
Mouthing objects 0.52 0.06 0.03
Play −0.03 0.80 −0.06
Daily routine −0.04 0.77 −0.06
Change in others 0.01 0.68 −0.04
Mealtime 0.06 0.63 −0.03
New places −0.09 0.60 0.09
Social interactions −0.04 0.56 0.12
Bedtime 0.04 0.54 0.01
Interruptions 0.03 0.43 0.16
Placement of objects 0.00 0.29 0.25
Hits self with body part 0.21 0.22 0.11
Pulls own hair 0.03 0.21 0.18
Skin picking 0.01 0.17 0.12
Visual inspection −0.04 −0.07 0.82
Fascination with movement 0.03 −0.11 0.80
Interest in parts of objects −0.03 −0.06 0.74
Limited and intense interests 0.04 0.05 0.49
Sensory interests 0.08 0.13 0.44
Stillness −0.05 0.07 0.40
Object attachment −0.04 0.13 0.38
Media use −0.03 0.20 0.35
Scratches, pinches, or pokes self 0.05 −0.03 0.34
Hits self against surface 0.11 0.14 0.28
Hits self with object 0.13 0.20 0.27
Arranging toys/objects 0.10 0.04 0.23
Bites self −0.02 0.06 0.19
  1. Italics signify items belonging to a common factor