This research is being done to determine whether a home-based behavioral therapy can be
successfully used to treat tics in children with Tourette syndrome (TS). Behavioral therapy
administered by a trained therapist has been shown to be helpful in reducing tics in children
with Tourette syndrome. In this study, the investigators want to determine whether an
instructional video can provide parents of children with TS with the tools necessary to
successfully use behavioral therapy at home. The investigators also want to determine the
effectiveness of home-based behavioral therapy as compared to improvement achieved when the
therapy is provided by a trained therapist.