Most tests like this are IQ tests, and studying has little impact on IQ test scores, except perhaps showing where you over think things or take too much time. It might get you from 12% to 35%, but won’t get you from 12% to 70%.
Most IQ tests are rife with cultural biases, and can, in fact, be studied for. There's also no indication of what constitutes "passing" for Seattle's test, and how that compares to "passing" in other jurisdictions.