"CSBS DP " is an easy-to-use, norm-referenced screening and evaluation tool that measures the communicative competence (use of eye gaze, gestures, sounds, words, understanding, and play) of children with a functional communication age of 6 to 24 months and a chronological age of 6 months to 6 years. Derived from the popular, norm-referenced "CSBS, CSBS DP " is shorter and faster and lets early intervention professionals begin identification earlier. "CSBS DP " is an ideal starting point for planning IFSPs, determining the efficacy of inteventions, documenting changes in a child's behavior...