Abstract
Although several costing instruments have been previously developed, few have been validated or applied systematically to the delivery of evidence-based practices (EBPs). Using data collected from 26 organizations implementing the same EBP, this article examines the reliability, validity, and applicability of the brief Treatment Cost Analysis Tool (TCAT-Lite). The TCAT-Lite demonstrated good reliability-correlations between replications averaged 0.61. Validity also was high, with correlation of treated episodes per $100,000 between the TCAT-Lite and independent data of 0.57. In terms of applicability, cost calculations found that if all organizations had operated at optimal scale (124 client episodes per year), existing funds could have supported 64% more clients.
