Seems unlikely, both because I doubt the premise that an RO, whatever it looked like, would be significantly more or less trainable than IQ measurements (based on the fact that supposed measures of learnable knowledge like the SAT and GRE are so strongly correlated with IQ) and because if it had any measurement power it would, like the SAT and GRE, quickly become embroiled in politics due to disparities in outcomes between individuals and groups.
Seems unlikely, both because I doubt the premise that an RO, whatever it looked like, would be significantly more or less trainable than IQ measurements (based on the fact that supposed measures of learnable knowledge like the SAT and GRE are so strongly correlated with IQ) and because if it had any measurement power it would, like the SAT and GRE, quickly become embroiled in politics due to disparities in outcomes between individuals and groups.