The Robitussin contains a cough suppressant to stop coughing, an expectorant to break up mucus and phlegm, a decongestant to clear nasal congestion, and other ingredients.
4) Develop a testable hypothesis: we can investigate this claim by conducting a survey. This survey should be for 7 to 8 days.
Procedure:
- Collect 20 to 30 people with a history of cough for this investigation.
- The patient should be given the cough syrup after they are enrolled in the study for 7 days.
- At the screening, the intensity, frequency, discomfort in the chest, quantity, and type of sputum should be noted towards the end of the seventh and fourth days of treatment.
- On a visual analogue scale that should be divided into ten equal portions of 1 cm each, the patient should note the severity and frequency of their coughing.
- On this scale, the patient should indicate the severity of their symptoms both during the screening and four days after taking the cough medicine.
- On these days, the scores should be recorded, and any score decreases should be scrutinised to determine the effectiveness of the cough syrup.
- It would be wise to research the taste, colour, odour, and consistency of cough syrup as well as the clinical and haematological safety characteristics.
- On the fourth day, the patient and the doctor should conduct a comprehensive evaluation.
5) In this experiment, independent variable is consumption of cough syrup because this will manipulate the condition of cough in patient.
6) In this experiment, Dependent variable is Cough which depend on the consumption of cough syrup on daily basis.
This is how we can investigate the effectiveness of cough syrup.
Learn more about independent variable here:
https://brainly.com/question/25223322
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