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. Author manuscript; available in PMC: 2017 Dec 1.
Published in final edited form as: JAMA Psychiatry. 2016 Dec 1;73(12):1276–1284. doi: 10.1001/jamapsychiatry.2016.2600

Table 2.

Exploratory Factor Analysis Item Loadings on Principal Components 1–6a

SRS Item Domain Component
1 2 3 4 5 6
Factor 1
 Literal, does not understand the real meaning SCI 0.72 0.01 0.02 0.08 −0.04 0.02
 Does not know when others take advantage SCI 0.70 −0.06 0.03 0.17 0.04 0.05
 Is not physically well coordinated RRB 0.61 −0.13 −0.18 0.08 0.14 0.61
 Clings to adults, seems too dependent SCI 0.58 −0.07 −0.24 −0.11 0.11 0.58
 Wanders aimlessly, 1 activity to another SCI 0.56 −0.11 0.14 −0.07 −0.15 0.56
 Does extremely well at a few tasks but not most RRB 0.56 −0.003 −0.11 0.05 0.10 0.56
 Concentrates on parts, does not see the whole SCI 0.53 0.12 0.12 0.07 0.11 0.53
Factor 2
 Recognizes when something is unfair SCI 0.07 0.65 0.01 −0.12 −0.01 0.13
 Responds appropriately to others’ mood changes SCI −0.06 0.64 −0.09 0.03 0.13 −0.04
 Is able to imitate others’ actions SCI −0.04 0.62 0.07 −0.004 0.07 0.05
 Offers comfort when others are sad SCI −0.18 0.58 0.20 −0.09 0.02 0.04
 Understands tone of voice, facial expression SCI −0.14 0.57 −0.01 0.16 0.04 −0.004
 Has a sense of humor, understands jokes SCI 0.11 0.51 0.05 −0.13 −0.14 0.09
Factor 3
 Walks between 2 people who are talking SCI −0.01 0.08 0.81 0.02 −0.06 0.07
 Difficulty with changes in routine RRB −0.06 −0.06 0.76 0.06 0.04 0.10
 Uses unusual tone: like robot or lecture SCI −0.22 −0.04 0.74 0.06 0.04 −0.13
 Has good self-confidence SCI 0.12 −0.08 0.51 −0.05 0.01 −0.09
Factor 4
 Avoids people who want to be emotionally close SCI 0.02 −0.04 0.03 0.76 0.11 0.03
 Wanders aimlessly, 1 activity to another SCI 0.17 −0.03 0.10 0.72 −0.13 0.08
 Concentrates on parts, does not see the whole SCI 0.02 −0.01 −0.05 0.66 −0.08 0.05
 Unusual sensory interests (mouthing/spinning) RRB 0.11 −0.10 0.01 0.50 0.01 0.07
Factor 5
 Is overly suspicious SCI 0.26 0.06 −0.21 −0.05 0.62 −0.01
 Stares or gazes off into space SCI −0.05 0.03 0.15 −0.05 0.55 0.02
 Is too silly or laughs inappropriately SCI 0.18 0.02 0.06 −0.01 0.54 0.10
Factor 6
 Talks around the subject SCI 0.09 0.05 −0.02 0.13 0.02 0.85
 Avoids starting social interactions SCI 0.02 0.15 −0.01 0.04 −0.05 0.66

Abbreviations: RRB, restricted interests and repetitive behaviors; SCI, social communication and interaction; SRS, Social Responsiveness Scale.

a

Excluding autism spectrum disorder–enriched sample.