Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Dirk Kraijer is active.

Publication


Featured researches published by Dirk Kraijer.


Journal of Autism and Developmental Disorders | 2000

Review of Adaptive Behavior Studies in Mentally Retarded Persons with Autism/Pervasive Developmental Disorder

Dirk Kraijer

A review is presented of the investigations carried out concerning the adaptive behavior of persons with the dual disability of mental retardation and autism/PDD. A close correspondence is found between the results obtained by means of a Dutch set of scales, the SRZ, SGZ, and SMZ, and those obtained by means of the Vineland Adaptive Behavior Scales. Compared with matched nonautistic persons, the performance of dually disabled persons is found to be particularly poor in the domain Social Skills/Socialization and somewhat less poor in the domain Communication. Performance of the two categories does not differ in the domains Self Help/Daily Living Skills and Gross Motor Skills/Motor Skills. As a net result, persons of the dually disabled category are found to obtain comparatively low total scores for social competency, the SRZ-Total/Adaptive Behavior Composite. In addition, autistic mentally retarded persons are found to display more maladaptive behavior. For comparative studies in the mental retardation field the use of level of Self Help/Daily Living Skills and, to a lesser extent, level of Gross Motor Skills/Motor Skills are recommended as suitable matching variables.


Kind En Adolescent | 2007

Pervasieve ontwikkelingsstoornissen bij kinderen en jeugdigen met een lichte verstandelijke beperking

Annelies de Bildt; Dirk Kraijer

AbstractDe Bildt, A. A., & Kraijer, D. W. (2007). Pervasive developmental disorders in children and adolescents with mild intellectual disabilities, Kind en Adolescent, 28 (3), 171-181.Pervasive developmental disorders (pdds) frequently occur in children with mild intellectual disabilities (mid): the most recent Dutch percentages report almost 1 in 10, 15 times higher than the 0.6% in the general population. The co-occurrence of pdd with mid significantly affects the development and behaviour of the child, also with respect to adaptive skills and indirectly the level of education that can be attained. The high prevalence and the severe consequences of pdd in mid justify an early and thorough diagnostic process. Instruments, such as the pdd-mrs, the adi-r and the ados may be of help in this process. Keywords: mild intellectual disability (mid); Pervasive Developmental Disorders (pdd); diagnostic instruments.SamenvattingPervasieve ontwikkelingsstoornissen (pdd’s) komen vaak voor bij kinderen met een lichte verstandelijke beperking (lvb): de recentste Nederlandse cijfers wijzen op bijna 1 op 10, ruim 15 maal hoger dan de 0,6% in de algemene populatie. Het hebben van een pdd naast een lvb heeft zeer beperkende gevolgen voor de ontwikkeling en het gedrag van het kind, en daarmee ook voor de sociale redzaamheid en indirect voor het haalbare schoolniveau. Vanwege de hoge prevalentie en de ernstige gevolgen van pdd bij een lvb is het van belang dat diagnostiek vroegtijdig en zorgvuldig wordt ingezet. Instrumenten als de avz-r, adi-r en ados kunnen hierbij behulpzaam zijn.


Journal of Autism and Developmental Disorders | 2004

Interrelationship Between Autism Diagnostic Observation Schedule-Generic (ADOS-G), Autism Diagnostic Interview-Revised (ADI-R), and the Diagnostic and Statistical Manual of Mental Disorders (DSM-IV-TR) Classification in Children and Adolescents with Mental Retardation

Annelies de Bildt; Sjoerd Sytema; Cees Ketelaars; Dirk Kraijer; Erik J. Mulder; Fred R. Volkmar; Ruud B. Minderaa


Journal of Child Psychology and Psychiatry | 2005

Prevalence of pervasive developmental disorders in children and adolescents with mental retardation.

Annelies de Bildt; Sjoerd Sytema; Dirk Kraijer; Ruud B. Minderaa


Journal of Autism and Developmental Disorders | 2005

The psychometric properties of the Vineland Adaptive Behavior Scales in children and adolescents with mental retardation

Annelies de Bildt; Dirk Kraijer; Sjoerd Sytema; Ruud B. Minderaa


Journal of Intellectual Disability Research | 2005

Adaptive functioning and behaviour problems in relation to level of education in children and adolescents with intellectual disability

A de Bildt; Sjoerd Sytema; Dirk Kraijer; Sara S. Sparrow; Ruud B. Minderaa


Journal of Child Psychology and Psychiatry | 2006

Structural equation analysis of a hypothesised symptom model in the autism spectrum

Natasja D. J. van Lang; Anne Boomsma; Sjoerd Sytema; Annelies de Bildt; Dirk Kraijer; Cees Ketelaars; Ruud B. Minderaa


Journal of Intellectual Disability Research | 2005

Social skills in children with intellectual disabilities with and without autism.

A de Bildt; M. Serra; Ellen Luteijn; Dirk Kraijer; Sjoerd Sytema; Ruud B. Minderaa


Journal of Autism and Developmental Disorders | 2005

The PDD-MRS: An instrument for identification of autism spectrum disorders in persons with mental retardation

Dirk Kraijer; Annelies de Bildt


Journal of Autism and Developmental Disorders | 2003

Measuring Pervasive Developmental Disorders in children and adolescents with mental retardation: A comparison of two screening instruments used in a study of the total mentally retarded population from a designated area

A de Bildt; Sjoerd Sytema; Cees Ketelaars; Dirk Kraijer; Fred R. Volkmar; Ruud B. Minderaa

Collaboration


Dive into the Dirk Kraijer's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar

Sjoerd Sytema

University Medical Center Groningen

View shared research outputs
Top Co-Authors

Avatar

Annelies de Bildt

University Medical Center Groningen

View shared research outputs
Top Co-Authors

Avatar

A de Bildt

University of Groningen

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Natasja D. J. van Lang

Leiden University Medical Center

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Anke Bouma

University of Groningen

View shared research outputs
Top Co-Authors

Avatar

Anne Boomsma

University of Groningen

View shared research outputs
Top Co-Authors

Avatar
Researchain Logo
Decentralizing Knowledge