Oh, that's easily explained. By going through the Brain Workshop ML archives and then keeping on top of all subsequent emails, I've managed to compile a fair number of failures-to-replicate in http://www.gwern.net/DNB%20FAQ#criticism and also deeply troubling criticism of studies that were reported at complete face value in places like Wired (for Jaeggi 2008) or the Wall Street Journal (for Jaeggi 2011, which we criticized here).
And I know that the failures to replicate are not widely known because I also have a Google Alerts set up for dual n-back and I see how it's being discussed on blogs and forums, which invariably cite - if they cite anything - only the positive results. Then there are the people on the mailing list, who enjoy discussing positive results but ignore or insult the other results. (I fear Moody's essay has caused his name to be taken in vain more than once over the years.)
Thanks. What's your take on the claim that stereotype encouragement, along the lines of "you're part of a group that's good at math" or "this is a test that you'll be good at," can boost performance above baseline on high-stakes tests? I've heard this claimed with regard to men and Asian-Americans, but worried about publication and reporting biases.
I have neither the qualifications nor the access to properly understand these two paywalled critiques of the RAND Health Insurance Experiment.
Health Plan Switching and Attrition Bias in the RAND Health Insurance Experiment
The Rand Health Insurance Study: A Summary Critique
Has there been any talk about either of these on OB/LW? If not, why not and could anyone with access to the papers make any comments about how much weight they carry?
I post this here because the RAND results are brought up so often in discussions here, I hope others find it to be an appropriate venue.