Introduction
Three principles of scale development — Dimensionality, Item Selection, & Item Scoring are especially relevant for Quality Rating and Improvement Systems (QRIS) rating scales. This brief describes how using these principles can help in the development and refinement of QRIS rating scales. Attention to these principles will enhance the ability of QRIS ratings to achieve the goal of predicting observed quality scores and child outcomes.
The additional technical report describes the analysis in detail, highlighting the data from six large studies of early care and education quality used, as well the quality indicators used and three sets of analyses.