This paper reports the findings of how to increase the validity of market rate survey price findings. It includes analyses of data from six diverse states that address the challenges made to market rate study validity. Specifically, the report evaluates the effect of using various data sources and data collection methods on market representation, market price findings, and cost effectiveness on producing child care market price findings. The Validity Study is one of three components of a study designed to provide guidance to states on producing valid findings with market rate surveys.