The Devereux Early Childhood Assessment (DECA) and recently updated Devereux Early Childhood Assessment for Preschoolers, Second Edition (DECA-P2) are strength-based measures that can inform early intervention. Whereas the short-term psychometric properties of these parent rating scales are strong, little is known about their long-term stability. Study findings from a diverse Head Start sample (N = 282, DECA; N = 346, DECA-P2) revealed 12-month, test-retest reliability of protective factors (r = .65) to be equivalent on the DECA-P2 and the DECA. The stability of parent ratings of behavior concerns appears improved in the newer edition (r = .53 vs. r = .46). Additional consideration should be given to the stability of the DECA-P2 and its use as short-and long-term social, emotional, and behavioral intervention progress monitoring tool. Keywords protective factors, risk factors, young children, behavioral assessment A growing body of research supports the use of a strengths-based or dual-factor (i.e., risk and protective factors) approach to inform early intervention (e.g., Masten, 2014). A social-emotional rating scale for young children measuring protective factors and behavior concerns is the Devereux Early Childhood Assessment (DECA; LeBuffe & Naglieri, 1999) and its recent update, the Devereux Early Childhood Assessment for Preschoolers, Second Edition (DECA-P2; LeBuffe & Naglieri, 2012). Both include intervention manuals that link assessment results to evidencedbased interventions, consistent with calls in the literature to use assessment data to inform early intervention efforts (Snyder, Wixson, Talapatra, & Roach, 2008). The DECA assessments have a growing research base supporting their technical adequacy including examinations of both reliability and validity (e.g.