> a) has this study been reproduced (i.e. the Dashboard business)

Nope. Did you notice the part of the article where they declared victory and extended the program to all students?

> A rise of four percentage points might not seem like much of a revolution. And Yeager and Walton are certainly not declaring victory yet. But if the effect of the intervention persists over the next three years (as it did in the elite-college study), it could mean hundreds of first-generation students graduating from U.T. in 2016 who otherwise wouldn’t have graduated on time, if ever. It would go a long way toward helping David Laude meet his goals. And all from a one-time intervention that took 45 minutes to complete. The U.T. administration was encouraged; beginning this month, the “U.T. Mindset” intervention will be part of the pre-orientation for all 7,200 members of the incoming class of 2018.

How nice of them. Besides helping out the student body, this also spares them the risk of having to falsify a cherished idea.