The variance homogeneity test in RCBD can also be used in blood glucose variability testing.
An increasing number of medical research studies have shown the importance of controlling blood
glucose variability in diabetic patients. Patient’s blood glucose can be measured by finger stick and
blood glucose monitors. For each patient, blood glucose will be monitored daily at different time
slots. We can consider every day as a treatment group and every time slot within the day as a
block. For instance, the 24-hr continuously measured blood glucose levels can be averaged for each hour (treatment group). The goal is to test whether the intra-day hourly (treatment groups) blood
glucose variability are different among days (blocks). See [12] and Fig. 1 therein, [22,11] for data and
importance of blood glucose variability studies.