If the grading of diabetes is classified as "mild", "moderate" and "severe" the scale of measurement used is -
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
interval
Nominal
Ordinal
Ratio
Biostatistics