Galileo Pre-K Online is a reliable and valid assessment tool that can be used to define, assess, and track learning. Galileo applies procedures based in Item Response Theory (IRT) to information gained through observational assessment to estimate a measure of child learning for each age range scale. This estimate of child learning is presented as the Developmental Level (DL) score.
ATI conducts research and analysis each year creating resources to help evaluate children’s learning. Two DL score analysis research briefs are now available:
Predicted Developmental Level Scores for Children Birth through 5 Years Based on 2014-15 Assessment Data
The predicted DL score helps you evaluate your children’s learning at various ages relative to the predicted DL score for children that age. Having this information early in the program year means you can identify children whose DL score is higher or lower than predicted and provide them enrichment and or intervention activities to further their development.
Estimated Growth for Children Birth through 5 Years Based on 2014-15 Assessment Data
In Galileo, growth is defined as a child’s change in his or her DL score. To help determine the estimated growth of children over various time periods, ATI looked at the relationship between a child’s DL score and time (in days). From this analysis, ATI was able to determine the estimated daily growth rate.
Read the full research briefs:
• Predicted Developmental Level Scores for Children Birth through 5 Years
• Estimated Growth for Children Birth through 5 Years