You are studying the effect of a new medication on asthma pa…

You are studying the effect of a new medication on asthma patients with severe cases of chronic bronchitis. You have four groups of participants receiving varying levels of medication: Low-dose treatment Medium-dose treatment High-dose treatment Placebo treatment You have randomly assigned participants to each group. You develop a hypothesis that participants in the high-dose treatment group will not have a relief of symptoms in their bronchitis infection. The participants stayed in the study for 6 months.   What is the dependent variable in this experiment?