Identify the ordinal categorical variables in this study. (Select all that apply.) whether or not the patient practiced the Buteyko method age of patients gender of patients measures of quality of life, activity, asthma symptoms, and medication reduction There are no ordinal categorical variables.The Buteyko method is a shallow breathing technique developed by Konstantin Buteyko, a Russian doctor, in 1952. Anecdotal evidence suggests that the Buteyko method can reduce asthma symptoms and improve quality of life. In a scientific study to determine the effectiveness of this method, researchers recruited 600 adult asthma patients who relied on medication for asthma treatment. These patients were randomly split into two research groups: one practiced the Buteyko method and the other did not. Patients were scored on quality of life, activity, asthma symptoms, and medication reduction on a scale from very bad to very good. On average, the participants in the Buteyko group experienced a significant reduction in asthma symptoms and an improvement in quality of life