Finally, given that participants were college students, it can be assumed that the study sample had reasonably well-developed learning skills. Therefore, the fact that the test room environmental conditions (normal and OCZ) had no measurable negative effect on reading modality learning performance is a reasonable study outcome. Yet, the OCZ test room environmental conditions resulted in a measurable decrease in learning performance for the listening test modality, even though adult students likely possessed a repertoire of reasonably sophisticated learning strategies. These results imply that as the learning skills of a student population decrease, substandard classroom built environment conditions may have an increasingly negative effect on performance across a range of learning activities. For example, students with poorly developed learning strategies, students undergoing remediation, or students with learning disabilities might be particularly at risk of learning interference in substandard learning settings. Thus, the built environment is not ignorable in settings of higher learning. The design of college classrooms should maximize learning; based on this research, ensuring physical comfort should be part of the design conversation.