This 2006 Microsoft PowerPoint presents background information on the issue of measuring early childhood professional development. A "common core" of items for State data collection is being developed. A distinction is made between formal education and training. How this distinction can be adopted in data collection and reporting is discussed. Some of the components of professional development include: (1) format, (2) auspice, (3) mode of delivery, (4) content, (5) recency or time frame, and (6) extent of training.