Overall, the Teaching Strategies GOLD assessment system appears to be yield highly reliable scores as indicated by both the classical and Rasch reliability statistics. Results of the factor analyses showed that the ratings loaded onto the constructs generally as intended by the test development team. Analyses of the dimensionality of each scale score strongly suggest that the GOLD assessment system ratings measure six distinct domains of development and that each satisfies the Rasch model assumption of unidimensionality. The model fit statistics suggest that the data are a good fit for the Rasch rating scale model. These results also strongly suggest that teacher’s are able to make valid ratings of the developmental progress of children across the intended age range, from birth through 72 months.