This article presents the design, national standardization, and validation of the Preschool Learning Behaviors Scale (McDermott, Green, Francis, & Stott, 2000). A normative sample (N = 100) of 3- to 5-1/2-year-olds was configured to the U.S. Census, wherewith factor analyses yielded distinct and reliable dimensions of Competence Motivation, Attention/Persistence, and Attitude Toward Learning. The solution was invariant in an independent national sample (N = 170) and generalizable across child sex, age, ethnicity, and parent education level. Three-week stability and interobserver agreement were supported with a local Head Start sample (N = 52). Bivariate and canonical correlations demonstrated validity convergence with indices of social skills, divergence from behavior problems, and substantial independence from cognitive ability. Implications and future research are considered. (C) 2002 Wiley Periodicals, Inc.