A questionnaire based measure of empathising devised by Baron-Cohen and colleagues. A person’s overall test score on the EQ is assumed to reflect their ability to empathise. Each member of a population can receive a low, high or average score. On average, females tend to score highest whereas people on the autism spectrum generally have the lowest scores, although there is also considerable overlap. (See also Empathising, Empathising-systemising theory, Systemising and Systemising Quotient (SQ).)