Scioly.org

Momo wrote:are binders needed?

Like prelude_to_death said, you can't bring in binders for this event. But the thing is, this is one of those events that require a lot of analysis and interpretation skills. There's only so much information you can put on your notes. The rest, you just have to be able to understand concepts really well and be able to apply them during the test.

srsvball95 wrote:

Momo wrote:are binders needed?

Like prelude_to_death said, you can't bring in binders for this event. But the thing is, this is one of those events that require a lot of analysis and interpretation skills. There's only so much information you can put on your notes. The rest, you just have to be able to understand concepts really well and be able to apply them during the test.

Yup. srsvball95 is right. To my knowledge, this event is mostly using process and test skills. Pretty much, to practice for this event, I would say take a lot of practice tests online and stuff.

Momo wrote:are binders needed?

Binders are also an excellent study tool, and it's good to keep info there for review or clarification. It's also nice to have the information available if you come up with something you want to add to your note sheet on the bus there...

Dose anyone happen to have a copy of last year's Division B test? I'd like to look over it for practice and see what I might have missed.

thanks for the replies, I actually thought that at the competition you could bring the binder but not into the test room, I was a bit confused about that but I got it clarified.

~Thanks~

Ok, so what I have the hardest time with is 2x2 tables. Could someone give me a list of all the calculations they can be used for and how to calculate said calculations? This is my biggest issue in this event.

So for 2x2 tables, there are a couple of formulas you can use from it

A B
C D

Okay so pretend there's a table and within that those letters are contained.

First you can do relative risk. The formula is (a/a+b)/(c/c+d). There should be numbers plugged in where the a, b, c, and d are and you plug those numbers into the formula.

Same goes for odds ratio. The formula is ad/bc.

Also, there is attack rate. The formula is death/population or number sick/total in group. For attack rate, you have to calculate it two different times when given a 2x2 table- an attack rate for the exposed group and an attack rate for the unexposed group (controls).

So, for attack rate, would one only use it in a case control study?

No, attack rate can be used in any study design

how do you calculate odds ratio?