Just been looking at my sister's RAADS-R assessment of me at https://www.aspietests.org/ re x above ASD threshold.
Language 9-4= 2.25
Social relatedness 86-31= 2.77
Sensory/motor 35-16 = 2.19
Circumscribed interests 33-15 = 2.2
The main one is 'Social relatedness'. This ties in with what I know about myself.