"Students consistently rate female and racialized professors lower than white male professors, research has shown, even when female professors are more effective in teaching" while "race" profs. are not? (what do you even mean by "racialized"?)
Effectiveness is slippery fish to measure , however, a  positive rating is an indicator of teaching effectiveness. Most teacher surveys are so poorly worded and toothless that they are just a nice time waster in class for the prof.