Internet Learning Volume 6, Number 2, Fall 2017/Winter 2018 | Page 8

Better Together: How Blending Course Modalities Impacts Student Persistence of similar on-ground courses. Notably, most of these studies tend to be small-N, non-reproducible assessments, the largest collection of which can be found at the No Significant Difference website (http://www.nosignificantdifference. org/). A more recent meta-analysis by the Ithaka S+R group (Wu, 2015) confirms both the lack of methodological rigor and the finding of no significant difference in student outcomes between online and on-ground courses. Perhaps the most referenced meta-analysis in recent years was produced by the U.S. Department of Education in 2010 (Means, Toyama, Murphy, Bakia, & Jones, 2010), in which they found that “blended and purely online learning conditions implemented within a single study generally result in similar student learning outcomes. When a study contrasts blended and purely online conditions, student learning is usually comparable across the two conditions” (p. xvi). The general finding of this meta-analysis is that blended and online learning outcomes are comparable to classroom instructions, yet where statistically significant differences do exist between modalities, blended learning tends to produce superior outcomes. When discussing blended or hybrid learning, it is important to understand the terminology being used. There have been multiple definitions put forth to capture the terms blended courses or hybrid courses, with the majority of those definitions predicated on the amount of classroom seat-time that is replaced with online instruction. For example, the State of Texas adopted a reporting definition which states, “A hybrid/blended course is a course in which a majority (at least 50 percent but less than 85 percent) of the planned instruction occurs when the students and instructor(s) are not in the same place” (THECB, 2017). This operational definition is similar to others in use. Blending or hybrid curricula can have multiple meanings, however. Moving beyond the concept of a blended course, we move to the idea of a blended curriculum. Kim (2007) offers a general definition, “A blended curriculum is a set of courses, where some of the courses are blended, some are purely e-learning courses, and others are purely traditional courses” (p. 4). The implication is that this curriculum has been blended by purpose or design and formally offered to the students. However, much of the emerging practice at institutions is informal blending of a curriculum. Bloemer and Swan (2013) inform us that informal blending is the phenomenon where “students [are] mixing onground and online courses to complete post-secondary programs” (p. 52). The growth of students mixing modality can be seen via the Civitas Learning data set across 72 different institutions and institutional types representing over 1.5 million students: fully 25% of those students have mixed modalities. Recognition of the existence of informal blending has emerged relatively recently, and as such there has not been a significant amount of research published on the impact of informal blending on student progression, retention, or completion. A few notable recent papers highlight some of the ear- 7