Children’s Obsessional Compulsive Inventory-Revised-Self Report (ChOCI-R- S)

The ChOCI-R is a 32-item, two-part measure assessing the content and severity of compulsions and obsessions in children and adolescents aged 7-17 years. The ChOCI-R is of similar format to the Child Yale-Brown Obsessive Compulsive Scale (CY-BOCS), as compulsions and obsessions are addressed separately, but is self-report rather than clinician rated. Part One of the measure looks at symptoms of compulsions and impairment associated with compulsions, and Part Two addresses obsessional symptoms and impairment associated with obsessional symptoms.

Uher, Heyman, Turner and Shafran (2008) evaluated the test with a clinical sample of 285 children and adolescents with OCD. The ChOCI-R has acceptable internal consistency, and the ChOCI-R impairment scales show convergent validity with the similarly-structured CY-BOCS. The measure also demonstrates divergent validity with a measure of general child psychopathology. The self-report version of the ChOCI-R yielded clearer distinctions between obsessions and compulsions than the parent-report version.

A raw score for each compulsion and obsession subscale is provided in the output, along with raw scores for total impairment (range 0-48) and total symptoms (range 0-40). Each subscale and total score are also presented as percentiles based on responses from a sample of young people referred to an OCD clinic (Uher et al., 2008). A percentile of 50 indicates the average reported score for a young person with OCD.Higher total impairment scores indicate higher levels of severity/distress related to OCD symptoms, whilst higher total symptoms scores indicate greater complexity and pervasiveness of OCD symptoms.

Each subscale is computed as follows:

  • Compulsion Symptom score: Sum of questions 1 to 10
  • Compulsions Impairment score: Sum of questions 14 to 19
  • Obsession Symptom score: Sum of questions 20 to 29
  • Obsession Impairment score: Sum of questions 33 to 38
  • Total symptom score: compulsion symptom score + obsession symptom score
  • Total impairment score: compulsions severity score + obsession severity score

Uher, R., Heyman, I., Turner, C. M., & Shafran, R. (2008). Self-parent-report and interview measures of obsessive-compulsive disorder in children and adolescents. Journal of Anxiety Disorders, 22(6), 979-990. doi:10.1016/j.janxdis.2007.10.001

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