Fig. 3: Estimated learning rates, α.
From: Implicit racial biases are lower in more populous more diverse and less segregated US cities
We plot learning as a decrease in bias levels relative to an arbitrary baseline, \(\frac{b}{{b}_{0}}\) as a function of the number of additional inter-group contacts. Solid curves indicate the mean estimated learning rate from the scaling exponent or majority group adjustment (diversity effect) averaged across years. Shaded regions show the 95% confidence intervals for the learning rate estimates with the lower envelop and upper envelope referring to the scaling exponent and diversity estimates, respectively. The violin plot gives an upper bound on the learning rate from 18 previously conducted experimental interventions25,26 designed to simulate one-shot inter-group contact of varying quality.
