The construction and utility of three indexes of intellectual achievement: an intellectual-development (ID) index a socio-intellectual-status (SIS) index a differential-intellectual-development (DID) index U.S. children and youths, 6-17 years

Autor: H J, Dupuy, G, Gruvaeus
Rok vydání: 1977
Předmět:
Zdroj: Vital and health statistics. Series 2, Data evaluation and methods research. (74)
ISSN: 0083-2057
Databáze: OpenAIRE