A comparative study of foot measurements using Receiver Operating Characteristics (ROC) approach
The objective of this research was to assess the reliability of the foot measurements by comparing the male and female foot measurements, to know if there is correlation between the male and female foot measurements using the standard set by Landis and Koch (1977), and also to identity the true positive rate and false positive rate of both male and female individuals using Receiver Operating Characteristics. The foot measurements for both male and female individuals were obtained from University of Port Harcourt Teaching Hospital (UPTH) Rivers State Nigeria. We investigated the influence of the data structure as a Multivariate analysis using Statistical software (SPSS 17). The receiver operating curve was done to compare the foot measurements of male and female individuals considering the ages of 18-19yrs, 20-21yrs, 22-23yrs and 24yrs and above. The results show that there seem to be a positive correlation between the male and female foot measurements. The Hotteling’s T2 statistic shows that the foot measurements differ.
Keywords: Correlation, Receiver Operating Characteristics, Hotellings T2