22. (3 pts.) Age at onset is thought to influence severity of disease symptoms and resolution of disease for patients wi

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22 3 Pts Age At Onset Is Thought To Influence Severity Of Disease Symptoms And Resolution Of Disease For Patients Wi 1 (55.63 KiB) Viewed 13 times

22. (3 pts.) Age at onset is thought to influence severity of disease symptoms and resolution of disease for patients with Guillian Barre syndrome (GBS). You are conducting a study on a new drug to treat GBS, but want to avoid the potential for age confounding your results. The LEAST ACCEPTABLE way to account for this in study design is to: a. Randomly assign patients to new drug vs. standard care without respect to age b. Block according to age, ensuring equal numbers of children, adult, and elderly in the two treatment groups c. Block according to age, placing all elderly in one treatment group and all children in the other, with adults split between the two d. Systematically assign to groups based upon order of entering the study (the first patient to treatment, the second to control, third to treatment, fourth to control, etc.) 23. (3 pts.) Random error always bias towards the null hypothesis. This means: a. Nothing. Statements including 'never' or 'always' are meaningless b. Random error makes it more difficult to identify differences, if they exist c. Random error has a greater effect on the treatment group than on the control group d. Random error reflects poor study design, and thus the tested hypothesis is highly likely to be false