Byalick, R., & Bersoff, D. N. (1974). Reinforcement practices of black and white teachers in integrated classrooms. Journal of Educational Psychology, 66(4), 473-480.
http://dx.doi.org/10.1037/h0036742
Used the Positive Reinforcement Observation Schedule to obtain data concerning expressed preference for, and observed use of, positive reinforcement in integrated classrooms taught by 30 black and 30 white female elementary school teachers. Results indicate that (a) black and white teachers emitted virtually equal rates and types of reinforcers, (b) only 32% of the combined sample actually used the reinforcers they stated they preferred, (c) reinforcement emission in classrooms occurred at a relatively low rate, (d) teachers reinforced opposite-raced children more frequently than children of their own race, (e) males were reinforced more frequently than females, and (f) black females were the least reinforced group of all. (16 ref) (PsycINFO Database Record (c) 2016 APA, all rights reserved)