Friendship and Relationship Quotient (FQ)


Author of Tool: 

Baron-Cohen, S. and Wheelwright, S.

Key references: 

Baron-Cohen, S. and Wheelwright, S. (2003). The Friendship Questionnaire (FQ): An investigation of adults with Asperger Syndrome or High Functioning Autism, and normal sex differences. Journal of Autism and Developmental Disorders 33:509-517

Primary use / Purpose: 

The FQ is self-administered and contains 35 closed-choice questions on attitudes to social interaction and friendships.


While friendship is an important part of social functioning, there have been few measures for examining individual differences. TheFriendship and Relationship Quotient (FQ) has confirmed observational findings that females and males have differing attitudes towards friendship. It also confirmed that those with autism spectrum disorders are less interested in close friendship than controls. The measure may be used to differentiate between populations, or to evaluate treatments for social issues with pre and post-tests.


Relaibility and Validity are confirmed in Baron-Cohen and Wheelwright (2003).


Web link to tool: 

Friendship Quotient

Digital Object Identifier (DOI):


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