Empathy/Systemizing Quotient (EQ-SQ) for Toddlers (1.5 – 4 years)

The questionnaires may be used independently from one another. Please refer to the documents below to identify individual EQ and SQ items.

Please reference the following publication when using this questionnaire: Khan, Y. T., Tsompanidis, A., Sun, L., Allison, C., & Baron-Cohen, S. (2026). The Empathy Quotient and Systemising Quotient for toddlers: Development and validation. Journal of Autism and Developmental Disorders. https://doi.org/10.1007/s10803-026-07427-9

Available downloads
Title	Language	Contributors/Notes
Empathy/Systemizing Quotient (EQ-SQ) for Toddlers (1.5 – 4 years)	English	Yumnah Khan, University of Cambridge
Empathy/Systemizing Quotient (EQ-SQ) for Toddlers (1.5 – 4 years) - Scoring Key	English	Yumnah Khan, University of Cambridge