The 2014 letter, then, was based on dubious claims about the effects of school discipline and highly questionable assumptions about what is driving racial discipline disparities. (educationnext.org)
These are not trivial problems, and attempts to solve them have usually involved making questionable assumptions. (globalwarmingsolved.com)
As a data set, there is not much that can be directly presumed without making questionable assumptions. (slaw.ca)