This research was conducted to evaluate the technical properties of a set of early numeracy CBM tests that were designed to operationalize early numeric concepts. Data were collected over the course of a school year from 113 kindergarten and first-grade children using nine separate tests with three alternative forms. In addition, test-retest reliability was examined. Correlational design methods were used to examine the consistency of the tests as well as their relation to criterion measures. Receiver operating characteristic (ROC) curves were also generated and inspected to examine diagnostic accuracy. Results indicated that two tests demonstrated strong technical properties across all three analyses, and an additional two demonstrated promise. Methodological improvements to test procedures should be addressed in future research, and linking assessment to intervention can be facilitated using tests developed in the current study. (Contains 9 tables.)