„Schooling after the second grade plays only a minor role in creating or reducing gaps.“
Univ.-Prof. James Heckman, „American Educator“, Frühjahr 2011, S. 34
„Schooling after the second grade plays only a minor role in creating or reducing gaps.“
Univ.-Prof. James Heckman, „American Educator“, Frühjahr 2011, S. 34