For anyone who has states coming up, I will tell you what the Ohio State Disease Detectives B test was like.
First off, it was 15 pages long, with several pages of short answer, so therefore several teams did not finish. Time management was definitely important in this test. The first page was matching, but not the simple matching with basic terms such as fomite, vector, epidemic, endemic (like the terms everyone knows). These words were things such as prevalence, incidence, blinding, randomization, types of bias, and types of studies. Fairly easy, but something new in matching. Next page caught me off guard at first, as it had things like "number of people who died from influenza in 2015", and I thought we had to know the exact number. Luckily, you used same word bank and identified the rates such as mortality rate, case-fatality rate, point prevalence, etc. I believe the next page was fairly simple, with 5 scenarios where you simply circled whether or not bias was present. Next page was attack rate calculations, and a little more math. Somewhere in the test it talked about the things needed for prevalence, and like explaining each Criteria for Causation. There were lots of analyzing of studies, asking you to identify, explain benefits and non-benefits, explain why it was the study, etc. These problems alone took up three pages or so? There were also questions asking what prevention was being used, and advantages. As well as, explaining P values and risk ratios. I think the problem that made you think the most was one that had the following scenario. There was a test conducted for a type of disease, and anyone with .20 g/l or under was negative, while over was positive. They supplied the positive and negative predictive values, and then asked if you would change the testing amount to .10 g/l or .50 g/l, and why. You were asked to explain the effects of sensitivity and specificity in your answer, and I believe this problem took the longest but was definitely do-able.
We ended up placing first in Ohio DD
, which was a shock considering it was our first year in Science Olympiad, but I think that even though the test was hard, it was a good thing as it made everyone think and made less room for ties.
If you have any questions, just reply to this.