YE_COG12

This project is the fourth measurement of a longitudinal study on the development of intelligence and problem behavior (waves one and two not included in CD2). Intelligence is measured by the Dutch version of the Wechsler Intelligence Scale for Children-Revised (WISC-R). Cortisol and testosterone levels were measured in saliva, which was collected on two consecutive days. Pubertal development was measured with the Tanner self-report scales. Behavioral data was collected with the Youth Self-Report (YSR).

Cohort
Subject age
  • 12.0 years
Time span From 1998-01-01 to 2000-01-01
Geographic location NL
Publisher
Creators
Dorret I. Boomsma
Vrije Universiteit Amsterdam
Contributors
Meike Bartels
Vrije Universiteit Amsterdam
Funding information
NWO
575-25-012
NWO
R 56-467
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