Data collection in Maine: Assessing the Return on Public Investment in Maine's Early Childhood System Judy reidt-Parker - To better understand the outcomes of investments in early childhood, we need comprehensive data to measure benchmarks, according to Judy Reidt- Parker. She describes the current state of data collec- tion in Maine and discusses data that are needed and where there are opportunities for improvement. The greatest need is for the development of a common set of child and program outcomes that can be shared across departments and systems and for linking systems so that children's progress can be followed longitudinally.