This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biostatistics, Subject name: Social & Preventive Medicine
Results of a test were given as very satisfied, satisfied, dissatisfied, it representes 
Select and explain. 
A. Nominal scale, B. Ordinal scale, C. interval scale, D. Ratio scale
B: Ordinal scale
Answer: B: Ordinal scale 
Explanation: Scales can be: Qualitative: Categorical scales: Nominal : eg: names of countries . Dichotomous : eg: yes/no, presence/absence. Ordinal : severity of disease: mild/moderate/severe.eg: staging of cancer, kuppusamy socioeconomic class. Quantitative: Metric scales: Interval Ratio