This means "that her performance was as good as that of an average 8-year-old child".
Alfred Binet and Theodore Simon trusted intelligence to be an learned element. This test was framed keeping in mind the end goal to quantify intelligence of kids as per their age. With this scale they endeavored to make a test which was institutionalized and would take into consideration the estimation of a child’s intelligence in the present. This scale was initially made with the purpose to categorize kids as a way for them to get special education, after some time formed into an estimation of intelligence for all kids.
