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The aim of this study was focused on the calibration of the Spanish version of the 10-item Conners Hyperactivity Index or Conners 3-AI using the Rasch model. The participants in this study were 482 children aged 5 and 6 years old. Results showed that the IHC has good psychometric properties. The fit of both items and persons data to Rasch model was good, and the response categories were functioning properly. Boys scored significantly higher than girls. Three of the items were at risk of gender-specific DIF. The Conners 3-AI has an obvious floor effect, which prevents the evaluation of children with low levels of hyperactivity.

Calibración del Índice de Hiperactividad de Conners mediante el modelo de Rasch