'Complete Test Material Form M Revised Stanford-Binet Scales by Terman-Merrill', in wooden case containing form board, printed card material and picture of child. In 1905 Alfred Binet and Theodore Simon in France introduced the idea of measuring intelligence. This is the popular 1937 version of the test produced by Lewis Terman and Maude Merrill in the USA. This version made by Houghton Mifflin Co, USA, uses objects because it is aimed at children.
© Science Museum / Science & Society Picture Library