Per capita income is increasing rapidly but remains low in comparison with other states in the region. (slaw.ca)
Moreover, there was no control group, and thus no basis for comparison with other schools in their districts. (educationnext.org)
With this challenge, as with the others that you have identified, there are issues deeply - rooted into society to consider and this makes comparison with other nations a tricky subject. (teachermagazine.com.au)