I just finished taking the implicit bias tests and I really enjoyed it. I was not at all surprised by my results and I felt they were accurate. What was so enlightening for me was the additional brain processing power it took to switch flexibly between the categories of sorting. It was very clear while I was taking the test which was considered the "norm" and I found those sorting exercises to be easier to process. I was surprised that it felt easy for me to associate "foreign" and 
"European American" and it was easy for me to associate "Asian American" and "American" and also "Native" and "American". So much of my training in therapy has been about recognizing judgements of myself and others and identifying the assumptions and feelings that are at play in clinical work- I feel I was applying those skills in the IAT and didn't feel those judgements but it was so apparent to me which associations were the "norm" that it underscored the purpose of the IATs.