Using Parental Ratings to Study the Etiology of 3-year-old Twins ’ Problem Behaviors : Different Views or Rater Bias ?


Child Behavior Checklist questionnaires (Achenbach, 1992), filled in separately by mothers and fathers, were collected for an effective sample of 3501 Dutch 3-year-old twin pairs. To disentangle the child’s phenotype from that of the rater, two contrasting models were fitted to the data. One model, called a Rater Bias model, is based on the assumption that… (More)

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