The Developmental Profile 4 (DP-4) is designed to assess the development and functioning of individuals from birth through age 21 years, 11 months. The DP-4 is administered as a direct interview of a parent or caregiver, as a checklist completed by a parent/caregiver or teacher, or as a rating form completed by the clinician. This allows for evaluation of a child’s development across both home and school settings, and from the perspectives of different respondents. Each of the four DP-4 forms measures the following five areas of development: Physical, Adaptive Behavior, Social–Emotional, Cognitive, and Communication.

The DP-4 is a revision of the Developmental Profile 3 which has long been considered by users as quick, easy, informative, reliable, and valid. This revision maintains the strongest aspects of the previous versions while incorporating new features and improvements, such as the addition of two new forms (Teacher Checklist and Clinician Rating forms) and one new score type (growth score). The DP-4 can be used effectively in a variety of settings to provide a detailed account of a child’s developmental strengths and weaknesses while simultaneously identifying developmental delay.