Answer
Who: Experimental subjects; Cases: Each subject is a case;
What: Treatment (herbal cold remedy or sugar solution) and cold severity;
When: Not specified; Where: Not specified;
Why: To test the efficacy of the herbal remedy on the common cold;
How: The scientists set up an experiment;
Variable: Treatment; Type: Categorical;
Variable: Cold severity rating; Type: Quantitative;
Units: Scale from 0 to 5.
Work Step by Step
Who: Experimental subjects; Cases: Each subject is a case;
What: Treatment (herbal cold remedy or sugar solution) and cold severity;
When: Not specified; Where: Not specified;
Why: To test the efficacy of the herbal remedy on the common cold;
How: The scientists set up an experiment;
Variable: Treatment; Type: Categorical;
Variable: Cold severity rating; Type: Quantitative;
Units: Scale from 0 to 5.
