Yale Global Tic Severity Scale

The Yale Global Tic Severity Scale (YGTSS) is a psychological measure designed to assess the severity and frequency of symptoms of disorders such as tic disorder, Tourette syndrome, and obsessive-compulsive disorder, in children and adolescents between ages 6 to 17.[1][2]

Yale Global Tic Severity Scale
Purpose	assess tics

The questionnaire is divided into three parts over the span of 17 pages: one section identifies symptoms of motor and phonic tics, severity, and age of onset. Another section concerns OCD symptoms, severity, and age of onset, and the last section concerns environmental effects on symptoms. The YGTSS is completed by the parent and takes approximately 15–20 minutes. The questionnaire has shown good reliability and validity in assessing tic severity in recent studies.[3][4][5]

References

1. Martino D, Pringsheim TM, Cavanna AE, et al. (March 2017). "Systematic review of severity scales and screening instruments for tics: Critique and recommendations". Mov. Disord. (Review). 32 (3): 467–473. doi:10.1002/mds.26891. PMC 5482361. PMID 28071825.
2. Sukhodolsky DG, Gladstone TR, Kaushal SA, Piasecka JB, Leckman JF (2017). "Tics and Tourette Syndrome". In Matson JL (ed.). Handbook of Childhood Psychopathology and Developmental Disabilities Treatment. Autism and Child Psychopathology Series. p. 248.
3. Leckman, JF; Riddle, MA; Hardin, MT; Ort, SI; Swartz, KL; Stevenson, J; Cohen, DJ (July 1989). "The Yale Global Tic Severity Scale: initial testing of a clinician-rated scale of tic severity". Journal of the American Academy of Child and Adolescent Psychiatry. 28 (4): 566–73. doi:10.1097/00004583-198907000-00015. PMID 2768151.
4. Kircanski, K; Woods, DW; Chang, SW; Ricketts, EJ; Piacentini, JC (August 2010). "Cluster analysis of the Yale Global Tic Severity Scale (YGTSS): symptom dimensions and clinical correlates in an outpatient youth sample". Journal of Abnormal Child Psychology. 38 (6): 777–88. doi:10.1007/s10802-010-9410-5. PMC 2902733. PMID 20386987.
5. Storch, Eric A.; Murphy, Tanya K.; Geffken, Gary R.; Sajid, Muhammad; Allen, Pam; Roberti, Jonathan W.; Goodman, Wayne K. (2005). "Reliability and validity of the Yale Global Tic Severity Scale". Psychological Assessment. 17 (4): 486–491. CiteSeerX 10.1.1.1018.7453. doi:10.1037/1040-3590.17.4.486. PMID 16393016.

Further reading

• Murphy, Tanya K.; Lewin, Adam B.; Storch, Eric A.; Stock, Saundra; American Academy of Child and Adolescent Psychiatry (AACAP) Committee on Quality Issues (CQI) (December 2013). "Practice Parameter for the Assessment and Treatment of Children and Adolescents With Tic Disorders". Journal of the American Academy of Child & Adolescent Psychiatry. 52 (12): 1341–1359. doi:10.1016/j.jaac.2013.09.015. PMID 24290467.
• Geller, Daniel A.; March, John; AACAP Committee on Quality Issues (CQI) (January 2012). "Practice Parameter for the Assessment and Treatment of Children and Adolescents With Obsessive-Compulsive Disorder". Journal of the American Academy of Child & Adolescent Psychiatry. 51 (1): 98–113. doi:10.1016/j.jaac.2011.09.019. PMID 22176943.