The Yale Global Tic Severity Scale: Initial Testing of a Clinician-Rated Scale of Tic Severity

JAMES F. LECKMAN, MARK A. RIDDLE, MAUREEN T. HARDIN, SHARON I. ORT, KAREN L. SWARTZ, JOHN STEVENSON, DONALD J. COHEN

Research output: Contribution to journalArticlepeer-review

Abstract

Despite the overt nature of most motor and phonic tic phenomena, the development of valid and reliable scales to rate tic severity has been an elusive goal. The Yale Global Tic Severity Scale (YGTSS) is a new clinical rating instrument that was designed for use in studies of Tourette's syndrome and other tic disorders. The YGTSS provides an evaluation of the number, frequency, intensity, complexity, and interference of motor and phonic symptoms. Data from 105 subjects, aged 5 to 51 years, support the construct, convergent, and discriminant validity of the instrument. These results indicate that the YGTSS is a promising instrument for the assessment of tic severity in children, adolescents and adults.

Original languageEnglish (US)
Pages (from-to)566-573
Number of pages8
JournalJournal of the American Academy of Child and Adolescent Psychiatry
Volume28
Issue number4
DOIs
StatePublished - 1989
Externally publishedYes

Keywords

  • Tourette's syndrome
  • clinical rating instrument
  • motor and phonic tics

ASJC Scopus subject areas

  • Developmental and Educational Psychology
  • Psychiatry and Mental health

Fingerprint Dive into the research topics of 'The Yale Global Tic Severity Scale: Initial Testing of a Clinician-Rated Scale of Tic Severity'. Together they form a unique fingerprint.

Cite this