In 1913, Burt took the part-time position of a school psychologist for the London County Council (LCC), with the responsibility of picking out the "feeble-minded" children, in accordance with the Mental Deficiency Act of 1913.
År 1913 började Burt en deltidstjänst som skolpsykolog vid London County Council (LCC), med ansvar för att plocka ut ”svagsinta” barn i enlighet med Mental Deficiency Act of 1913.