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Re:Who Gets to Graduate? by mballantyne on Thursday June 05, 2014 @10:33PM (#7855922)
An academic paper summarizing studies on the effect of attitude interventions like those discussed in the OP:

https://labs.la.utexas.edu/adrg/files/2013/12/REVIEW-OF-EDUC...

Positive feelings of belonging and capability seem to be a surprisingly powerful form of race and class based privilege.

Re:Who Gets to Graduate? by 205guy on Friday June 06, 2014 @05:57AM (#7856989)
It's not just "like" the OP, that IS the academic paper by the psychology professor in the article about the work mentioned in the article.