5. Pre- and post-intervention assessment. Investigators will perform a variety of standard measures in all participants and caregivers. The following assessments will occur at baseline and after the 3 follow-up months. They will primarily be utilized to assess feasibility and logistics of data collection procedures. Separate appointments will be made for affected individuals and caregivers to maximize the validity of data collected (e.g., to ensure that caregivers do not 'help' affected individuals with answers to questions and feel comfortable providing information about issues such as difficult behaviors or levels of stress). Affected individuals assessments will take place at the group room. The initial caregiver assessment will take place at the caregiver's home or the group room. The first line of communication for follow-up appointments will be via telephone or in person to minimize the risk of loss of privacy. At the caregiver participant's request, further communication may be conducted via mail, email, fax or text. Caregivers will be informed that these modes of communication may increase their risk of loss of privacy. Mail, email, fax and text communications will include a confidentiality statement. The minimum amount of identifying information will be included in all communications. Study forms will include unique study ID numbers only.