Universal behavioral screening is a major part of positive behavioral support and response to intervention systems. Program-wide positive behavioral interventions and supports (PBIS) focuses on establishing social, emotional, and behavioral competence through promotion of a small set of behavioral expectations that are agreed upon, taught, and reinforced by all teachers across all settings. This study explored the validity of a novel approach to universal screening in program-wide PBIS whereby a "brief" screening tool for determining behavioral risk was developed using child adherence to program-wide behavioral expectations. Sixty-five children in a Head Start center were screened using an expectation-based screening procedure developed from the program-wide expectations. Two standardized emotional and behavioral rating scales were then administered as criterions. Results revealed convergent associations between the extent of children's adherence to program-wide expectations and the standardized criterion instruments in risk areas associated with hyperactivity, conduct, and externalizing problems. Classification accuracy analyses provided preliminary support for predicting several domains of behavioral risk. (author abstract)