Persistent Tic Disorder has only vocal or only motor tics.

• A. Only vocal or only motor tics
• B. No tics
• C. Onset after adulthood
• D. Both motor and vocal tics

Answer: (A)

Persistent Tic Disorder is defined by tics that are limited to a single domain—either motor or vocal—and persist for more than a year with onset before age 18. This means having only vocal tics or only motor tics fits the diagnosis, making the statement correct. If there are no tics, or tics begin after adulthood, or both motor and vocal tics are present at some point, the diagnosis would be Tourette's Disorder or another tic disorder, not Persistent Tic Disorder. The distinction hinges on single-domain tics versus the two-domain pattern seen in Tourette's.