The children's Yale-Brown obsessive–compulsive scale: Psychometric properties of child- and parent-report formats

Subjective versus objective measures of tic severity in Tourette syndrome – The influence of environment

“…Separate scores are obtained for obsessions and compulsions; their sum yields a total severity score (range 0-40); 16 is the cutoff total score for a diagnosis of OCD. The CYBOCS has demonstrated acceptable internal consistency and convergent validity (Gallant et al, 2008, Storch et al, 2006. The internal reliability in this study (Cronbach's α) was 0.89 for the obsession scale, 0.93 for the compulsion scale, and 0.93 for the total score.…”

An observational study of parent–child behaviours in paediatric OCD: Examining the origins of inflated responsibility

“…A total severity score is obtained by summing all items on the two scales. The CY-BOCS has good internal consistency across the sub scale and total scores (α ¼.78-.87; Storch et al, 2006) and a good test retest reliability (ICC ¼.70-.79;Storch et al, 2004). For the current sample, all children reported at least moderate severity, with an average total severity rating falling in the severe range (M ¼26.26, SD ¼5.83).…”

Further Psychometric Evaluation of the Child Disgust Scale

“…The CY-BOCS-SR produces three scores: Obsession Severity; Compulsion Severity; and a summative Total Score. Like the clinician-rated version (Storch et al, 2004), the CY-BOCS-SR demonstrates good internal consistency, moderate inter-rater agreement, and acceptable convergent and divergent validity [23]. …”