Professional thoughts
Caution is thus advised when it comes to programs aiming at reducing biases. Much more investigation into the long term effects of possible interventions is needed. The most problematic fine-grained implicit stereotypes need to be identified and a range of specifically-tailored interventions need to be designed to combat the whole gamut of prejudices that are problematic in our societies, not only targeting black/white race prejudice. More research needs to be conducted examining the conditions under which interventions will work and the factors that make them fail.
The fact that there is scarce evidence for particular bias-reducing techniques does not weaken the case for implementing widespread structural and institutional changes that are likely to reduce implicit biases, but that are justified for multiple reasons.