Question

2. A researcher at The Ohio State University believes that a certain component of ant venom can be used to lessen the amount of swelling in the knuckles of people suffering from arthritis. The ant venom treatment has been made into a capsule fom that cap be swallowed. Explain how you would design an experiment to investigate whether this new treatment when taken orally each day for one week causes a lower degree of swelling in arthritis sufferers. (You may suppose that 200 people suffering from arthritis have already volunteered to be experimental subjects). a. Outline the design of this experiment using a diagram like Section 5.3 in your textbook. b. Identify the explanatory variable and the response variable in your experiment. GOIMENM

Answer 1

(a) The design of this experiment is:

TREA TMEN GRoup I 100 ARTHRITIS AM VENOM RANDOM ASSIGNMENT OF 200 ARTHRITIS MEDICATION COMPARE KNVCKIE SUFFERERS SWELLING GrOup 2 - 100 ARTHRITIS SVFFERERSs TR EATMENT 2 PLACEBO SUFFERERS

(b) The explanatory variable is Ant Venom (Arthritis Medication).

The response variable is Knuckle Swelling.

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