Detecting psychiatric disorders in preschoolers: screening with the strengths and difficulties questionnaire

Trude Hamre Sveen1, Turid Suzanne Berg-Nielsen, Stian Lydersen

  • 1Department of Psychology, Norwegian University of Science and Technology, Norway. trude.hamre.sveen@svt.ntnu.no

Insights

Preschool screening for emotional and behavioral disorders using the Strengths and Difficulties Questionnaire demonstrates comparable efficiency to adult screening. However, impact scores and teacher information did not enhance prediction accuracy for early detection.

Area of Science:

  • Developmental Psychology
  • Child Psychiatry
  • Screening and Diagnostics

Background:

  • Early identification of psychopathology in preschoolers is crucial for timely intervention.
  • The Strengths and Difficulties Questionnaire (SDQ) is a widely used screening tool, but its efficiency in preschool populations requires further validation.
  • Understanding the added value of supplementary information, such as impact scores and teacher reports, can optimize screening protocols.

Purpose of the Study:

  • To evaluate the screening efficiency of the Strengths and Difficulties Questionnaire for preschool psychopathology.
  • To compare SDQ findings with established diagnostic criteria (DSM-IV) in a population-based sample of 4-year-olds.
  • To assess the incremental utility of impact scores and teacher-provided information in improving screening accuracy.

Main Methods:

  • A two-phase, population-based sample of 845 Norwegian preschoolers (age 4) was recruited.
  • Diagnostic assessments were conducted using the Preschool Age Psychiatric Assessment interview, blinded to screening results.
  • Receiver operating characteristic (ROC) analysis was employed to compare SDQ parent ratings against DSM-IV diagnoses.

Main Results:

  • Parental SDQ ratings achieved a specificity of 88.8% and a sensitivity of 65.1% for emotional and behavioral disorders.
  • The negative predictive value was high (97.9%), indicating effective rule-out of disorders, while the positive predictive value was lower (24.2%).
  • Screening accuracy was not significantly improved by incorporating impact scores or teacher information.

Conclusions:

  • The Strengths and Difficulties Questionnaire demonstrates comparable screening efficiency for preschool psychopathology as observed in older populations.
  • While effective for ruling out disorders, the positive predictive value suggests caution in interpreting positive screens without further assessment.
  • Further research is warranted to explore how preschool screening can best facilitate early detection and intervention services.
Abstract

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