Article2005

Reliability and validity of the Yale Global Tic Severity Scale.

Eric A. Storch · Tanya K. Murphy · Gary R. Geffken · Pam Allen · Jonathan W. Roberti · Wayne K. Goodman

258 citations0/0 files storedPsychological Assessment

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Obsessive-Compulsive Spectrum Disorders Anxiety, Depression, Psychometrics, Treatment, Cognitive Processes Stuttering Research and Treatment

Abstract

To investigate the reliability and validity of the Yale Global Tic Severity Scale (YGTSS), 28 youth aged 6 to 17 years with Tourette's syndrome (TS) participated in the study. Data included clinician reports of tics and obsessive-compulsive disorder (OCD) severity, parent reports of tics, internalizing and externalizing problems, and child reports of depression and anxiety. All children participated in a 2nd YGTSS administration by the same rater 48 days later. Good internal consistency and stability were found for the YGTSS scores. YGTSS scores demonstrated strong correlations with parent-rated tic severity (r = .58-.68). YGTSS scores were not significantly related to measures of clinician ratings of OCD severity (r = .01-.15), parent ratings of externalizing and internalizing behavior (r = -.07-.20), and child ratings of depression (r = .02-.26) and anxiety (r = -.06 -.28). Findings suggest that the YGTSS is a reliable and valid instrument for the assessment of pediatric TS.

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References

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2007Tourette Syndrome and Tic Disorders: A Decade of Progress 2011European clinical guidelines for Tourette Syndrome and other tic disorders. Part I: assessment 2017Course of Tourette Syndrome and Comorbidities in a Large Prospective Clinical Study 2007Tics Moderate Treatment Outcome with Sertraline but not Cognitive-Behavior Therapy in Pediatric Obsessive-Compulsive Disorder 2007

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