Developmental Level (DL) Scores
ATI research briefs assist educators interpreting DL scores
Galileo Pre-K Online provides a reliable and valid assessment tool that can be used to define, assess, and track learning. ATI applies procedures based in Item Response Theory (IRT) to information gained through observational assessment to estimate a measure of child learning. This estimate is presented as the DL score. The DL score indicates a child's position on a developmental path and provides information about the capabilities the child has learned as well as the capabilities the child is ready to learn. Each year, ATI conducts research to evaluate how a child's DL score relates to both a child's age as well as to the time a child is enrolled in a preschool program. The results of the research are summarized in the following two research briefs and can be used to gauge child growth.
- Estimated Growth for Children Birth through 5 Years Based on 2014-15 Assessment Data: The change in the DL score over time can be used to evaluate child growth. ATI's research can be used to estimate child growth for various time periods. This information can be used by early childhood providers to evaluate whether children are demonstrating adequate growth over time. Read the full brief.
- Predicted Developmental Level Scores for Children Birth through 5 Years Based on 2014-15 Assessment Data: ATI conducts annual research that can be used to predict the DL score for children at various ages. Early childhood providers can use the up-to-date information provided by this research to evaluate whether a child is progressing appropriately over time for his/her age. Read the full brief.