10 avril 2018

L'inventaire de dysrégulation des émotions: propriétés psychométriques et étalonnage de la théorie de réponse des items dans un échantillon de "trouble du spectre de l'autisme"

Aperçu: G.M.
Cet article décrit une nouvelle mesure de mauvais contrôle émotionnel appelée Emotion Dysregulation Inventory (EDI). Les aidants naturels de 1 755 jeunes avec un diagnostic de TSA ont complété des items, et des techniques statistiques avancées ont été appliquées pour identifier les meilleurs items finaux.  
Les analyses ont identifié deux facteurs:
  1. Réactivité, caractérisée par des réactions émotionnelles négatives intenses, en rapide escalade, soutenues et mal régulées, et 
  2. Dysphorie, caractérisée par l'anhédonie, la tristesse et la nervosité.  
Les items finaux ne montraient pas de fonctionnement différentiel des items (DIF) basé sur le sexe, l'âge, la capacité intellectuelle ou la capacité verbale.
L'EDI est unique parce qu'il permet de cerner les problèmes émotionnels courants liés aux TSA et convient aux jeunes non verbaux et verbaux. C'est une mesure efficace et sensible à utiliser dans les évaluations cliniques, la surveillance et la recherche auprès des jeunes avec un diagnostic de TSA.

Autism Res. 2018 Apr 6. doi: 10.1002/aur.1947.

The emotion dysregulation inventory: Psychometric properties and item response theory calibration in an autism spectrum disorder sample

Author information

1
Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
2
Department of Medicine, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
3
Department of Psychology, Virginia Tech, Blacksburg, Virginia.
4
Maine Medical Center Research Institute, Maine Behavioral Healthcare, Scarborough, Maine.

Abstract

Individuals with autism spectrum disorder (ASD) often present with prominent emotion dysregulation that requires treatment but can be difficult to measure. The Emotion Dysregulation Inventory (EDI) was created using methods developed by the Patient-Reported Outcomes Measurement Information System (PROMIS® ) to capture observable indicators of poor emotion regulation. Caregivers of 1,755 youth with ASD completed 66 candidate EDI items, and the final 30 items were selected based on classical test theory and item response theory (IRT) analyses. The analyses identified two factors: (a) Reactivity, characterized by intense, rapidly escalating, sustained, and poorly regulated negative emotional reactions, and (b) Dysphoria, characterized by anhedonia, sadness, and nervousness. The final items did not show differential item functioning (DIF) based on gender, age, intellectual ability, or verbal ability. Because the final items were calibrated using IRT, even a small number of items offers high precision, minimizing respondent burden. IRT co-calibration of the EDI with related measures demonstrated its superiority in assessing the severity of emotion dysregulation with as few as seven items. Validity of the EDI was supported by expert review, its association with related constructs (e.g., anxiety and depression symptoms, aggression), higher scores in psychiatric inpatients with ASD compared to a community ASD sample, and demonstration of test-retest stability and sensitivity to change. In sum, the EDI provides an efficient and sensitive method to measure emotion dysregulation for clinical assessment, monitoring, and research in youth with ASD of any level of cognitive or verbal ability. Autism Res 2018. © 2018 International Society for Autism Research, Wiley Periodicals, Inc.

LAY SUMMARY:

This paper describes a new measure of poor emotional control called the Emotion Dysregulation Inventory (EDI). Caregivers of 1,755 youth with ASD completed candidate items, and advanced statistical techniques were applied to identify the best final items. The EDI is unique because it captures common emotional problems in ASD and is appropriate for both nonverbal and verbal youth. It is an efficient and sensitive measure for use in clinical assessments, monitoring, and research with youth with ASD.
PMID:29624893
DOI:10.1002/aur.1947

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