Yes, questionnaires can be completed by telephone. When using this method, the developers recommend mailing a questionnaire to the family and then following up via telephone to complete the questionnaire. Mailing the questionnaire gives families the opportunity to try skills with their child prior to the telephone call, and they will have the questions in front of them during the conversation. The telephone interview option is effective for families who may need some support to complete a questionnaire or when it is not possible to schedule a visit to a child’s home.