.68
Materialien aus der Bildungsforschung
Eberhard Schröder
Katja Bödeker
Wolfgang Edelstein
in collaboration with
Thomas Teo
The Development of Formal Thought
A Manual Including Measurement Procedures and
Descriptive Analyses
Study „Individual Development and Social Structure"
Data Handbooks Part 2
Berlin 2000
Max-Planck-Institut für Bildungsforschung
fo
Ma