This passing score is subject to change over time as the IKAT is updated and as the competency to store and administer vaccines safely is observed for pass and non-pass groups. Normal linear regression was used compare the mean number of correct items for the total score and each sub-scale by job title. Differences in mean score were expressed as differences from RN mean score (?). Tests of pass rates within categories of respondents were performed using chi-square tests. All analyses used SPSS version 19 (PASW Statistics, 2011).