Demonstrating the ability to think critically is a common requirement of Higher Education (HE) assessments, bridging disciplines and forming a significant part of the feedback given to students. Despite its prominence, more can be learned about how different learner modes influence the propensity to use critical thinking. This article reports on the results from a study of critical thinking in a global MBA programme that compared how online, and on-campus environments influenced a learner's approach to problem-solving and decisionmaking. A survey instrument was administered to two cohorts, studying online and oncampus, who were taking an identical module in strategy. Whilst differences in learning experience were to be expected, the degree to which learner modes affected the propensity to think critically was surprising. On most measurements, on-campus learners outperformed their online counterparts. The results, interpreted through the lens of Administrative Behaviour Theory, demonstrate that learner modes should be treated as separate entities, and that a homogenous approach to digital and physical learning strategies may prove ineffective. The implications of the results are discussed, including recommendations for learning designers.