Yale Global Tic Severity Scale

Leckman, J.F, Riddle, M.A., Hardin, M.T., Ort, S.I., Swartz, K.L., Stevenson, J., and Cohen, D.J. (1989) The Yale Global Tic Severity Scale initial testing of a clinician-rated scale of tic severity. J Am Acad Child Adolesc Psychiatry 28 566-573. 

Tics/Tourette s syndrome Yale Global Tic Severity Scale 42 items rated 0—5 for 4 types tics simple vs. complex X motor vs. phonic 15 to 20 minutes Cl with Ch/A Leckman et ah, 1989... 

Yale Global Tic Severity Scale Public domain, James Leckman, M.D., Yale Child Study Center, 230 S. Frontage Rd., P.O. Box 207900,... 

The PARS, developed to fill a gap in clinician-rated assessments of pediatric anxiety, was modeled after the CY-BOCS and Yale Global Tic Severity Scale (YGTSS Feckman et ah, 1989). The PARS consists of a 50-item symptom checklist, scored by the interviewing clinician as present or absent (yes/no) during a specific rating... 

Evaluating therapeutic interventions is challenging, as most patients can suppress their tics voluntarily for minutes to hours. Also numerous factors such as stress, concentration, and relaxation can impact tic frequency and severity. The use of regular videotaped assessments in conjunction with standardized rating scales (Yale Global Tic Severity Scale) is helpful in objectively evaluating symptoms, side effects, and overall drug response. ... 

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