As of late 2015, edX no longer offers Honor Code certificates, which I think is worth noting since no one has written an answer to this question since their discontinuation.
Instead, in lieu of Honor Code certificates, you now get… no certificate!
The greatest downside to this (and arguably the only downside) is that you have no concrete evidence to show that you learned from a course you took. That’s right. Zero evidence. Zilch.
Well…
No concrete proof in the form of a piece of paper, anyway.
However, if you’ve studied an online course in earnest and have completed most of its coursework, presumably you’ll come away having learned something. And if you can apply what you learned to something tangible, to a project or to your work, for example, then you likely don’t need any certification!
So why bother with Verified Certificates at all?
There are two distinct cases in which I’d advocate for purchasing a Verified Certificate. The first is when you’re intent on completing a course. It turns out we have certain psychological shortcuts our mind takes in which paying actually gives us more incentives to finish a course.
For example, we value something that’s free ($0) as being less valuable than something that has a price tag assigned to it. We also feel something close to physical pain when we know we’re about to lose something of value. That means we’re less likely to ditch a course midway. Opening up your wallet, then, seems like a neat way to trick yourself into completing an online course!
The second is that although you might know that you’ve learned something, others don’t. If you’re keen on sharing your accomplishments with prospective employers, college admissions staff, or others who are in a role to judge you based on your qualifications and merits, linking to or printing out a certificate might be the easiest way to do so.
There are a few other reasons you might want to consider snagging a Verified Certificate, which you can find in an article I wrote here on the same subject.
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