CCohort-Based Everything

The single most consistent finding in adult education research over the last two decades has been so simple that it has been routinely under-stated. The finding is this: the same content, delivered to the same learner, produces dramatically better outcomes when the learner is going through it alongside a cohort of peers than when the learner is going through it alone. The differential, across studies and across content types, is consistently in the cohort's favour, and the magnitude is usually large enough to make the comparison decisive.

The finding has not been controversial in academic adult-education circles for some time. The slowness has been in translating it into practice. The dominant adult education products of the 2010s and early 2020s, the MOOCs, the asynchronous online courses, the self-paced video libraries, were built on the implicit assumption that solitary learning was at most a minor inconvenience and that the platforms' job was to remove friction so that solitary learning could happen efficiently. The assumption turned out to be substantially wrong, and the platforms paid for being wrong through a decade of disappointing completion rates and modest outcome data.

The next decade of adult education is going to correct this. The default unit of adult learning is going to shift, slowly and unevenly, from the solitary learner to the cohort. The shift is not going to be branded with a single label, there is no marketing campaign for "cohort-based everything", but the trend will be visible across most domains where adult learning is taken seriously.

¶Why the cohort wins so consistently

The cohort wins, in the data, for reasons that are well understood and persistent. The cohort provides accountability, the social cost of being the person who didn't do the work is, for most adults, larger than any internal motivation can supply on a sustained basis. The cohort provides reference, when the learner is stuck, the cohort's responses calibrate what the learner is and isn't supposed to be understanding at that point. The cohort provides community, the relationships formed in a serious cohort continue to provide value long after the formal learning ends, which means the cohort's value is amortized across a longer time period than the course's content alone would be.

The cohort also provides, for many learners, the actual content of the learning. The instructor's prepared material is only one source. The cohort's questions, mistakes, and discoveries are a parallel source of approximately equal density. For some kinds of learning, particularly applied, situational learning where context matters more than principle, the cohort's source can outweigh the instructor's source. The right framing is that the cohort is not a delivery enhancement for the instructor's content; the cohort is, jointly with the instructor, the substantive source of the learning.

¶The economic resistance

The shift to cohort-based everything has been slowed, not by lack of evidence, but by economic incentives. A cohort-based programme is harder to scale, harder to standardize, and more labour-intensive per learner than a self-paced programme. The unit economics of cohort-based learning are not as good for the platform as the unit economics of asynchronous content, and the consumer education industry has, for most of the last decade, been organized by platforms with strong preferences for the latter.

The result is that the cohort-based options available to the adult learner have been more expensive, less branded, and less marketed than the asynchronous options. The learner who looks at the choice, a $50 self-paced course versus a $500 cohort-based programme on similar content, has often, reasonably, picked the cheaper option, even when the data on outcomes would have justified the more expensive choice. The mismatch between the unit-cost-of-purchase and the unit-cost-of-outcome has been costing adult learners money for years, and most learners do not yet realize how large the mismatch is.

¶What cohort-based everything looks like in practice

In a working cohort-based system, every serious learning experience has a cohort attached. The cohort is small enough to function, usually ten to thirty people, and the structure of the cohort's interaction is designed deliberately, not left to spontaneous chat. The cohort produces work together, comments on each other's work, makes commitments to each other, and continues to meet after the formal programme ends. The learner's experience is structured around the cohort, with the content as supporting material rather than as primary deliverable.

This pattern is already common in the high end of executive education and in the cohort-based course movement of the last few years. The pattern is uncommon at the lower end of the price stack, where most of the volume of adult learning happens. The opportunity, over the next decade, is to push the cohort pattern down into the lower-cost layers, to make cohort-based learning the default at the price point where most adults are actually buying their professional development.

¶The Indian implementation

For Indian professionals, cohort-based everything is a particularly good fit. Indian professional culture, as discussed in the cohort-as-curriculum essay, has deep historical patterns of group-based intensive learning. The cultural readiness is in place. The geographic concentration of the professional class in a small number of cities makes cohort assembly feasible. The willingness to pay for serious learning, while smaller than in the global market in absolute terms, is sufficient to fund cohort-based programmes at scale.

The missing piece is the deliberate institutional choice to default to cohort-based design across more domains than just the high-end executive programmes that already use it. The Indian online education industry has, for the most part, copied the Western asynchronous model. The opportunity for the next generation of Indian education institutions is to leapfrog the asynchronous era and build cohort-based as the default. The institution that does this well will have a structural advantage over the institutions that continue to build asynchronous content as their primary offering.

¶What individual learners should do

If you are an adult professional planning your learning budget, the practical move is to weight cohort-based options more heavily than the price tags would suggest. The cohort-based programme that costs ten times as much as the self-paced equivalent is, by the outcome data, often the better trade. The math is hard to see when comparing prices on a checkout page. The math is easy to see when comparing outcomes a year later.

The deeper move is to seek out cohort-based opportunities even in domains where they are not the default. Find peers who are working on the same problem. Set up a regular meeting structure. Make commitments to each other. The cohort does not have to be branded as such; the cohort can be assembled by the learner. The cohort is the unit. The content is supporting material. The learning is what happens when the unit is right. Cohort-based everything is the future, because cohort-based everything is what actually produces learning. The data has been clear for some time. The market is, finally, beginning to catch up.