For people reading this post now as part of the decade review, I think this article was useful to get people thinking about this issue, but the more comprehensive data in this later post is more useful for actually estimating the rate of drop out.
For people reading this post now as part of the decade review, I think this article was useful to get people thinking about this issue, but the more comprehensive data in this later post is more useful for actually estimating the rate of drop out.