Disease Detectives B/C Question Marathon
Posted: August 28th, 2013, 8:19 pm
Question Marathon for Disease Detectives B/C.
Science Olympiad Student Center
https://scioly.org:443/forums/
--[b][u]Bias[/u][/b]-- Three types of bias are [u]selection bias[/u], which is the selection of subjects into your sample or their allocation to treatment group that produces a sample that is not representative of the population; [u]measurement bias[/u], which is when the measurement of outcomes is inaccurate, possibly because of inaccuracy in the measurement instrument or bias in the expectations of study participants, careers, or researchers; and [u]analysis bias[/u], which is when not all participants remain in the group to which they were allocated and complete the follow up.
Yup, that's the right answer and the correct way to hide it.navigator wrote:Okay, so...
Hopefully that's the right way to hide the answer. If not, I apologize.--[b][u]Bias[/u][/b]-- Three types of bias are [u]selection bias[/u], which is the selection of subjects into your sample or their allocation to treatment group that produces a sample that is not representative of the population; [u]measurement bias[/u], which is when the measurement of outcomes is inaccurate, possibly because of inaccuracy in the measurement instrument or bias in the expectations of study participants, careers, or researchers; and [u]analysis bias[/u], which is when not all participants remain in the group to which they were allocated and complete the follow up.
So, do I ask a question now..?
navigator wrote:Alright, here's another relatively simple one.
What is an epidemic curve (i.e. say what the horizontal and vertical axis's represent)? Also, what are the different shapes of the curve and what do they signify?
The x-axis represents the amount of time. The y-axis represents the number of cases. Point Source signifies an outbreak usually relating to a common cause and happen in a brief amount of time, where it rapidly increases then declines slower. Continuous Common Source signifies that the common source had an extended duration of exposure time. Propagated (Progressive Source) signifies that the infection for the first outbreak is the source of infection to the next outbreak that is a source for later outbreaks.
An agent that causes disease, including bacteria, fungi, parasites, viruses etc.
Correct, your turn!CaRoLyN_s wrote:Yes, this marathon is so slow, barely anyone posts on it. WHERE ARE ALL THE DISEASE DETECTIVES?????An agent that causes disease, including bacteria, fungi, parasites, viruses etc.