The essential companion to the #1 developmental screener, the ASQ(R)-3 User's Guide gives professionals all the information and guidance they need to use ASQ-3. Professionals will get thorough step-by-step instructions on planning a monitoring program, using and scoring the questionnaires, making referrals, and evaluating the monitoring program a complete technical report with psychometric data, including validity, sensitivity, specificity, and overreferral...