title: DSM-IV internal construct validity: when a taxonomy meets data.
abstract: The use of DSM-IV based questionnaires in child psychopathology is on the increase. The internal construct validity of a DSM-IV based model of ADHD, CD, ODD, Generalised Anxiety, and Depression was investigated in 11 samples by confirmatory factor analysis. The factorial structure of these syndrome dimensions was supported by the data. However, the model did not meet absolute standards of good model fit. Two sources of error are discussed in detail: multidimensionality of syndrome scales, and the presence of many symptoms that are diagnostically ambiguous with regard to the targeted syndrome dimension. It is argued that measurement precision may be increased by more careful operationalisation of the symptoms in the questionnaire. Additional approaches towards improved conceptualisation of DSM-IV are briefly discussed. A sharper DSM-IV model may improve the accuracy of inferences based on scale scores and provide more precise research findings with regard to relations with variables external to the taxonomy.
authors.affiliation: University of Groningen, Faculty of Medical Sciences, Dept. of Psychiatry, The Netherlands. c.a.hartman@med.rug.nl
authors.forename: C A
authors.initials: CA
authors.lastname: Hartman
authors.forename: J
authors.initials: J
authors.lastname: Hox
authors.forename: G J
authors.initials: GJ
authors.lastname: Mellenbergh
authors.forename: M H
authors.initials: MH
authors.lastname: Boyle
authors.forename: D R
authors.initials: DR
authors.lastname: Offord
authors.forename: Y
authors.initials: Y
authors.lastname: Racine
authors.forename: J
authors.initials: J
authors.lastname: McNamee
authors.forename: K D
authors.initials: KD
authors.lastname: Gadow
authors.forename: J
authors.initials: J
authors.lastname: Sprafkin
authors.forename: K L
authors.initials: KL
authors.lastname: Kelly
authors.forename: E E
authors.initials: EE
authors.lastname: Nolan
authors.forename: R
authors.initials: R
authors.lastname: Tannock
authors.forename: R
authors.initials: R
authors.lastname: Schachar
authors.forename: H
authors.initials: H
authors.lastname: Schut
authors.forename: I
authors.initials: I
authors.lastname: Postma
authors.forename: R
authors.initials: R
authors.lastname: Drost
authors.forename: J A
authors.initials: JA
authors.lastname: Sergeant
mesh_terms: D000293:Adolescent; D002648:Child; D002665:Child Psychiatry / Q000592:standards; D002675:Child, Preschool; D005163:Factor Analysis, Statistical; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000175:diagnosis* / Q000523:psychology; D008960:Models, Psychological; D011569:Psychiatric Status Rating Scales / Q000592:standards*; D011599:Psychopathology; D015203:Reproducibility of Results; D012494:Sampling Studies; D011795:Surveys and Questionnaires