The Macarthur-Bates Communicative Development Inventories User's Guide and Technical Manual

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This easy-to-read manual provides professionals with a thorough introduction to the standardized, parent-completed report forms designed by top language researchers to assess language and communication skills in young children ages 8-30 months. The second edition of the English User (TM)s Guide and Technical Manual includes:

more demographically balanced normative data norms up to 17-18 months for the CDI: Words & Gestures more directions on administrating and scoring the CDIs an introduction to the automated CDI Scoring Program guidance on how scores for various subpopulations should be interpreted expanded information on machine scanning and a new option using desktop scanners key updates on research, clinical findings, and reliability and validity detailed information and normative values for the CDI-III, an extension for children 30 "37 months of age This manual is part of the MacArthur-Bates Communicative Development Inventories (CDIs). The CDIs and their Spanish adaptation, the Inventarios, are standardized, parent-completed report forms that track young children's language and communication skills. Top language researchers developed the report forms, designing them to focus on current behaviors and salient emergent behaviors that parents can recognize and track.

Learn more about the CDIs and the Inventarios.