The concept of differentiation holds immense significance in education, touching upon aspects like access, inclusion, justice, and equality. However, it is also a complex and elusive notion, which acquires different meanings across historical and cultural contexts. This article explores the shifting reasoning about differentiation in the Swedish…

Between 1946 and 1956, the Swedish Psychological and Pedagogical Institute (SPPI) organised several summer courses for the purpose of training teachers in intelligence testing. The aim of the courses was to make these teachers the first gatekeepers who would meet and direct the youngest pupils into ordinary classes or into special classes. This…

This article explores the role of psychiatry in the sorting of schoolchildren in Denmark, Norway, and Sweden from 1920 to 1950. Whereas the role and rise of educational psychology and IQ-testing in the differentiation processes in schooling have been examined through earlier research, the role of psychiatry in the interprofessional collaboration…

The old myth about the ability and variability of potential in children is a comforting myth, for those who are uneasy with the degree of inequality they see and would rather seek to justify it than confront it. The myth of inherent potential helps some explain to themselves why they are privileged. Extend the myth to believe in inherited ability…

The use of standardized testing in secondary schools (with students between 10 and 19 years old) is described for four European countries: (1) England; (2) West Germany; (3) the Netherlands; and (4) Sweden. In the decentralized English system, several published standardized tests are available; they are used less at the secondary level than in…

Changes in verbal, spatial, and reasoning intelligence among Swedish 13-year olds were studied from 1960 to 1990. Rising verbal scores until 1980 have been followed by a decline to essentially the 1960 level. Spatial and reasoning results have risen continuously. Gender and social class differences are discussed. (SLD)