Although it is assumed that student cognition contributes to student performance on achievement tests, it may be that current testing models lack the degree of specification necessary to warrant such inferences. With test score interpretations as the referent, the authors in this special issue address the role of student cognition in learning and educational measurement. The practicality of their recommendations is viewed through the filter of No Child Left Behind Act (NCLB) testing requirements. Commentary on the broader learning context is also shared. Although a focus on student cognition is an important one, the situational context within which learning occurs and tests are administered warrants consideration of a variety of social factors in order to fully specify the measurement construct and to interpret test scores meaningfully.