In 1989, James Leckman and colleagues published the Yale Global Tic Severity Scale (YGTSS), a clinician-rated instrument for measuring tic number, frequency, intensity, complexity, and impairment. The scale separates motor and phonic tic severity and adds a functional impairment score. It remains widely used in research and specialty clinics when tracking tic disorder treatment response over time.

The Quiz Hub built this Tourette syndrome test as an abbreviated, plain-language screener inspired by YGTSS themes. It uses 21 original items grouped into motor tics, vocal tics, and impairment domains rather than the full clinician-rated structure. That trade-off favors readability for casual users while naming the Leckman et al. source honestly. The Tourette Association of America notes that tic disorders affect roughly 1 in 100 school-age children and that behavioral intervention for tics (CBIT) is an effective first-line treatment for many patients.

The Quiz Hub testWhat it adds
OCD testObsession and compulsion domain scores, not sudden tic movements or vocal tics
ADHD testInattention and hyperactivity domain scores, not premonitory tic urges
Autism testSocial communication and sensory patterns, not motor and vocal tic frequency
This Tourette syndrome testMotor tic, vocal tic, and impairment domain scores with three-band screening signal

Sample item: rating Often on jerking your head or shoulders raises your motor tic domain score. Rating Very often on avoiding social situations because others notice your sounds raises impairment. ADHD fidgeting, OCD rituals, and autism-related stimming can overlap with tic patterns, so clinicians rule out other causes during evaluation. Browse more screeners on our mental health and clinical hub or read how we review quizzes in our editorial policy.