Screening of egocentric and unemotional characteristics in incarcerated and community children.

A two-dimensional instrument to screen egocentric and unemotional traits in children was tested in this study, and the associations with the aggressive and the antisocial symptoms of conduct disorder were determined. To this end the narcissistic-egocentric and callous-unemotional characteristics associated with psychopathy were, along with the symptoms of conduct disorder, rated by teachers in a general community sample of 1179 four-to-eighteen-year-old Dutch children, and by professional care takers in a sample of 145 twelve-to eighteen-year-old incarcerated adolescents. Confirmatory factor analysis showed that the ratings of the psychopathic characteristics indeed clustered into a dimension with egocentric characteristics and a dimension with unemotional characteristics.

Parental reports of symptoms of childhood disorders in Dutch children.

The number of children displaying childhood disorders in the Netherlands is estimated through a questionnaire referencing DSM-IV symptoms filled out by the parents of 2,563 4- 18-year-old Dutch children randomly taken from the general Dutch Youth population in 2004. The number of impaired children was estimated by applying the DSM-IV criteria for impairment by symptoms. It was found that 14% of all Dutch children display developmental difficulties, with 8% at risk of moderate behavioral and emotional difficulties and 6% at risk of a childhood psychiatric disorder.

Social and emotional detachment in Dutch children.

Characteristics associated with psychopathy were, along with the symptoms of aggressive and antisocial behaviour, rated by parents in a community sample of 2535 four-to-eighteen-year-old Dutch children in 2003. An analysis of principal components suggested two dimensions of psychopathic characteristics. The first dimension comprised egocentric characteristics and the second unemotional characteristics.

The development of a rating scale to screen social and emotional detachment in children and adolescents.

Rating scales to assess psychopathic characteristics in children and adolescents show a considerable item overlap with rating scales to assess attention deficit hyperactivity disorder (ADHD), oppositional-defiant disorder (ODD) and conduct disorder (CD) symptoms. The aim of this study is to preliminary test a short questionnaire clinicians can use to screen the unique characteristics of psychopathy. Parental ratings of psychopathic characteristics and symptoms of ADHD, ODD and CD were gathered in a community sample of 2535 4-18-year-old Dutch children.

Residential treatment of adolescents with severe behavioural problems.

The development of adolescents with severe behavioural problems receiving residential treatment in Holland was empirically studied during 1 year. Treatment methods included a standard program comprising behavioural modification and three specific treatment programs: psychodynamic treatment, structured community living and adventurous learning. The development of the youngsters who remained in the programs (N=78) was compared with the development of the youngsters who prematurely dropped out (N=20).