[Problems in the assessment of mental stress in school children].
D000124:Achievement; D001604:Berlin; D002648:Child; D004521:Educational Measurement; D005859:Germany, East; D006801:Humans; D007858:Learning; D008606:Mental Processes; D013315:Stress, Psychological / Q000175:diagnosis*
Probleme bei der Erfassung der geistigen Belastung im Schulalter.