Item response theory analyses of the parent and teacher ratings of the DSM-IV ADHD rating scale.

@article{Gomez2008ItemRT,
  title={Item response theory analyses of the parent and teacher ratings of the DSM-IV ADHD rating scale.},
  author={Rapson Gomez},
  journal={Journal of abnormal child psychology},
  year={2008},
  volume={36 6},
  pages={865-85}
}
The graded response model (GRM), which is based on item response theory (IRT), was used to evaluate the psychometric properties of the inattention and hyperactivity/impulsivity symptoms in an ADHD rating scale. To accomplish this, parents and teachers completed the DSM-IV ADHD Rating Scale (DARS; Gomez et al., Journal of Child Psychology and Psychiatry, 40, 265-274, 1999) for a group of 1,475 primary school-aged children. The results for the discrimination parameters showed that all symptoms… CONTINUE READING