Diversity trainings are big business. In the United States, companies spend about £6.1 billion per year, by one estimate, on programmes geared at making companies more inclusive and welcoming to members of often-underrepresented groups (British numbers aren’t easy to come by, but according to one recent survey, over a third of recruiters are planning to increase their investment in diversity initiatives).
Unfortunately, there’s little evidence-backed consensus about which sorts of diversity programmes work, and why, and there have been long-standing concerns in some quarters that these programmes don’t do much at all, or that they could actually be harmful. In part because of this dearth of evidence, the market for pro-diversity interventions is a bit of a Wild West with regard to quality.
For a new paper in PNAS, a prominent team of researchers, including Katherine Milkman, Angela Duckworth, and Adam Grant of the University of Pennsylvania’s Wharton School, partnered with a large global organisation to measure the real-world impact of the researchers’ own anti-bias intervention, designed principally to “promote inclusive attitudes and behaviors toward women, whereas a secondary focus was to promote the inclusion of other underrepresented groups (e.g., racial minorities).” The results were mixed at best – and unfortunately there are good reasons to be sceptical that even the more positive results are as positive as they seem.